astro sapiens

Webseite: e-periodica.ch/digbib/volumes?UID=asp-001

[29]«Im Fadenkreuz: NGC 7662, NGC 7209, Granatstern» von Markus Hägi; astro*sapiens 3/91, S.52; DOI:10.5169/seals-896895
[30]«Im Fadenkreuz: Omikron 2, NGC 1535» von Markus Hägi; astro*sapiens 4/91, S.7; DOI:10.5169/seals-896898
[31]«Die Fehler in Messiers Katalog» von Xavier Donath; astro*sapiens 4/91, S.39; DOI:10.5169/seals-896904
[32]«Die Galaxien des Virgo-Haufens» von Hans-Rudolf Frei; astro*sapiens 1/92, S.15; DOI:10.5169/seals-896911
[33]«Im Fadenkreuz: NGC 2683, NGC 2419, NGC 2371/2» von Markus Hägi; astro*sapiens 1/92, S.35; DOI:10.5169/seals-896913
[34]«Im Fadenkreuz: 30/31 Cygni, SAO 49338, NGC 6826, NGC 6811» von Markus Hägi; astro*sapiens 2/92, S.18; DOI:10.5169/seals-896921
[35]«Im Fadenkreuz: NGC 7027, Humason 1-2» von Markus Hägi; astro*sapiens 3/92, S.29; DOI:10.5169/seals-896931
[36]«Im Fadenkreuz: NGC 457, Messier 103» von Markus Hägi; astro*sapiens 4/92, S.26; DOI:10.5169/seals-896943
[37]«Im Fadenkreuz» von Markus Hägi; astro*sapiens 3/93, S.6; DOI:10.5169/seals-896853
[38]«Im Fadenkreuz: Die Lösung!» von Markus Hägi; astro*sapiens 4/93, S.51; DOI:10.5169/seals-896866
[39]«Im Fadenkreuz: NGC 2392, South 548» von Markus Hägi; astro*sapiens 1/94, S.25; DOI:10.5169/seals-896952
[40]«Auch M51 Hat Eine Supernova!» von Stefan Meister; astro*sapiens 2/94, S.6; DOI:10.5169/seals-896957
[41]«Im Fadenkreuz: M 51, ξ Ursae Maioris» von Markus Hägi; astro*sapiens 2/94, S.52; DOI:10.5169/seals-896968
[42]«Im Fadenkreuz: NGC 6934, NGC 6905» von Markus Hägi; astro*sapiens 3/94, S.48; DOI:10.5169/seals-896978
[43]«Im Fadenkreuz: Messier 77, NGC 1055» von Markus Hägi; astro*sapiens4/94, S.33; DOI:10.5169/seals-896987
[44]«Schleierhaftes Am Winterhimmel» von Bruno Bleiker und Patrick Schellenbauer; astro*sapiens 1/95, S.12; DOI:10.5169/seals-896786
[45]«Im Fadenkreuz: ζ Orionis, 52 Orionis, λ Orionis» von Markus Hägi; astro*sapiens 1/95, S.28; DOI:10.5169/seals-896790
[46]«Grün, Blau Oder Grau?» von Philipp Heck; astro*sapiens 2/95, S.29; DOI:10.5169/seals-896803
[47]«Im Fadenkreuz: NGC 5879, NGC 5866, NGC 5907, NGC 5908, NGC 5905» von Markus Hägi; astro*sapiens2/95, S.46; DOI:10.5169/seals-896806
[48]«Im Fadenkreuz: M 15, NGC 7008, NGC 7479» von Philipp Heck; astro*sapiens 3/95, S.27; DOI:10.5169/seals-896813
[49]«Im Fadenkreuz: M 1, NGC 1514, NGC 1931» von Markus Hägi; astro*sapiens 4/95, S.17; DOI:10.5169/seals-896823
[50]«Von Samichläusen und Weihnachtsbäumen: Zwei Schmankerl am Winterhimmel» von Philipp Heck; astro*sapiens 4/95, S. 51; DOI:10.5169/seals-896830

Astronomical Journal (AJ)

Webseite: iopscience.iop.org/journal/1538-3881

[201]«Looking into the Horsehead» Marc W. Pound1, Bo Reipurth, and John Bally; DOI:10.1086/368138
[255]«A study of reflection nebulae» van den Bergh, S.; Astronomical Journal, Vol. 71, p. 990-998 (1966); DOI:10.1086/109995
[311]«A KINEMATIC AND PHOTOMETRIC STUDY OF THE GALACTIC YOUNG STAR CLUSTER NGC 7380» W. P. Chen, A. K. Pandey, Saurabh Sharma, C. W. Chen, Li Chen, J. Sperauskas, K. Ogura, R. J. Chuang, and R. P. Boyle; Published 2011 August 9; DOI:10.1088/0004-6256/142/3/71
[341]«Optical identifications of AFCRL rocket infrared sources.» Cohen, M.; Astronomical Journal, Vol. 80, p. 125-127 (1975); February 1975; DOI:10.1086/111721
[354]«LkHα 101 and the Young Cluster in NGC 1579» G. H. Herbig, Sean M. Andrews, and S. E. Dahm; The Astronomical Journal, Volume 128, Number 3; DOI:10.1086/423043
[357]«Spitzer Observations of IC 348: The Disk Population at 2-3 Million Years» Charles J. Lada, August A. Muench, K. L. Luhman, Lori Allen, Lee Hartmann, Tom Megeath, Philip Myers, Giovanni Fazio, Kenneth Wood, James Muzerolle; The Astronomical Journal, Volume 131, Number 3; DOI:10.1086/499808
[375]«REINVESTIGATING THE CLUSTERS KOPOSOV 1 AND 2» Nathaniel Paust, Danielle Wilson, and Gerard van Belle; Published 2014 June 10; The Astronomical Journal, Volume 148, Number 1; DOI:10.1088/0004-6256/148/1/19
[376]«Physical Parameters of the Intermediate age Open Cluster IC 1311: Clues for the Theory of Stellar Evolution» Delgado, A. J.; Alfaro, E. J.; Aparicio, A.; Cabrera-Cano, J.; Astronomical Journal v.108, p.2193; December 1994; DOI:10.1086/117230
[379]«Survey for Transiting Extrasolar Planets in Stellar Systems. IV. Variables in the Field of NGC 1245» Joshua Pepper1 and Christopher J. Burke1; Published 2006 July 27; The Astronomical Journal, Volume 132, Number 3; DOI:10.1086/505942
[380]«Survey for Transiting Extrasolar Planets in Stellar Systems. I. Fundamental Parameters of the Open Cluster NGC 1245» Christopher J. Burke, B. Scott Gaudi, D. L. DePoy, Richard W. Pogge, and Marc H. Pinsonneault; The Astronomical Journal, Volume 127, Number 4, 2004;; DOI:10.1086/382720
[385]«Star Counts in the Open Cluster NGC 2420» Leonard, Peter J. T.; Astronomical Journal v.95, p.108, January 1988; DOI:10.1086/114617
[389]«Resolving the Circumstellar Environment of the Galactic B[e] Supergiant Star MWC 137 from Large to Small Scales» Michaela Kraus, Tiina Liimets, Cristina E. Cappa, Lydia S. Cidale, Dieter H. Nickeler, Nicolas U. Duronea, Maria L. Arias, Diah S. Gunawan, Mary E. Oksala, Marcelo Borges Fernandes, Grigoris Maravelias, Michel Curé, and Miguel Santander-García; Published 2017 October 20; The Astronomical Journal, Volume 154, Number 5; DOI:10.3847/1538-3881/aa8df6
[394]«LOW-METALLICITY YOUNG CLUSTERS IN THE OUTER GALAXY. I. Sh 2-207» Chikako Yasui, Naoto Kobayashi, Alan T. Tokunaga, Masao Saito, and Natsuko Izumi; Published 2016 February 9; The Astronomical Journal, Volume 151, Number 3; DOI:10.3847/0004-6256/151/3/50
[407]«Runaway Stars as Possible Sources of the Elliptical Ring Structures in NGC 7538» Josephine Fenske, Jason Arakawa, Cassandra Fallscheer, and James Di Francesco; The Astronomical Journal, Volume 161, Number 4, 2021; DOI:10.3847/1538-3881/abded2
[445]«The Sejong Open Cluster Survey (SOS). IV. The Young Open Clusters NGC 1624 and NGC 1931» Beomdu Lim, Hwankyung Sung, Michael S. Bessell, Jinyoung S. Kim, Hyeonoh Hur, and Byeong-Gon Park;The Astronomical Journal, Volume 149, Number 4, 215; DOI:10.1088/0004-6256/149/4/127


Webseite: astronomy.com

[51]Eye On The Sky: Canes Venatici by Deborah Byrd; Astronomy 4/92, p.52
[52]Eye On The Sky: Sagittarius by Deborah Byrd; Astronomy 7/92, p.52
[53]Exploring The Wonders Of Scutum by Robert Garfinkle; Astronomy 7/92, p.67
[54]Eye On The Sky: Cygnus by Deborah Byrd; Astronomy 8/92, p.48
[55]Eye On The Sky: Delphinus, Equuleus by Deborah Byrd; Astronomy 10/92, p.48
[56]Eye On The Sky: Orion by Deborah Byrd; Astronomy 1/93, p.52
[57]Eye On The Sky: Cancer by Deborah Byrd; Astronomy 2/93, p.52
[58]Eye On The Sky: Bootes by Deborah Byrd; Astronomy 4/93, p.48
[59]Eye On The Sky: Libra by Deborah Byrd; Astronomy 5/93, p.48
[60]Beautiful Bootes by Alister Ling; Astronomy 5/93, p.56
[61]Eye On The Sky: Scorpius by Deborah Byrd; Astronomy 6/93, p.48
[62]Eye On The Sky: Aquila by Deborah Byrd; Astronomy 7/93, p.48
[63]Eye On The Sky: Aquarius by Deborah Byrd; Astronomy 8/93, p.56
[64]Eye On The Sky: Piscis Austrinus by Deborah Byrd; Astronomy 9/93, p.48
[65]The Starry Sky: Orion by Deborah Byrd; Astronomy 1/94, p.55
[66]The Starry Sky: Perseus by Deborah Byrd; Astronomy 2/94, p.52
[67]The Starry Sky: Leo by Deborah Byrd; Astronomy 3/94, p.51
[68]The Starry Sky: Ursa Maior by Deborah Byrd; Astronomy 5/94, p.82
[69]The Starry Sky: Lyra by Deborah Byrd; Astronomy 6/94, p.51
[70]Tracking Down A Quasar by Phil Harrington; Astronomy 6/94, p.56
[71]The Starry Sky: Cygnus by Deborah Byrd; Astronomy 7/94, p.52
[72]Hunting Down The Cygnus Bubble; Astronomy 7/94, p.53
[73]The Starry Sky: Aquila by Deborah Byrd; Astronomy 8/94, p.51
[74]The Starry Sky: Cassiopeia by Deborah Byrd; Astronomy 9/94, p.63
[75]Spot M33 With The Naked Eye; Astronomy 9/94, p.65
[76]The Starry Sky: Aries by Deborah Byrd; Astronomy 10/94, p.50
[77]The Starry Sky: Taurus by Deborah Byrd; Astronomy 12/94, p.60
[78]The Starry Sky: Canis Minor by Deborah Byrd; Astronomy 2/95, p.63
[79]The Starry Sky: Virgo by Deborah Byrd; Astronomy 4/95, p.62
[80]The Starry Sky: Sagittarius by Deborah Byrd; Astronomy 7/95, p.60
[81]The Starry Sky: Capricornus by Deborah Byrd; Astronomy 8/95, p.58
[82]The Starry Sky: Cepheus by Deborah Byrd; Astronomy 9/95, p.63
[83]The Starry Sky: Pisces by Deborah Byrd; Astronomy 10/95, p.62
[84]The Starry Sky: Andromeda by Deborah Byrd; Astronomy 11/95, p.69
[85]The Starry Sky: Auriga by Deborah Byrd; Astronomy 12/95, p.69
[86]The Starry Sky: Gemini by Deborah Byrd; Astronomy 1/96, p.64
[87]The Starry Sky: Canopus and Carina the Keel by Deborah Byrd; Astronomy 2/96, p.64
[88]The Starry Sky: Canes Venatici by Deborah Byrd; Astronomy 3/96, p.62
[89]The Starry Sky: Coma Berenices by Deborah Byrd; Astronomy 4/96, p.62
[90]Hunt Down A Quasar; Astronomy 4/96, p.64
[91]Plunge Into The Lagoon by David J. Eichner; Astronomy 7/96, p.82
[92]Have Astronomers Solved The Quasar Enigma? by Ken Croswell; Astronomy 2/93, p.28

Astronomy & Astrophysics

Webseite: aanda.org

[146]«Version 2000 of the Catalogue of Galactic Planetary Nebulae» L. Kohoutek, A&A Volume 378, Number 3, November II 2001; DOI:10.1051/0004-6361:20011162
[159]«Planetary Nebulae distances in Gaia DR2» S. Kimeswenger and D. Barría; A&A Volume 616, August 2018; DOI:10.1051/0004-6361/201833647
[228]«A revised catalogue of δ Sct stars» E. Rodríguez, M. J. López-González and P. López de Coca; Astron. Astrophys. Suppl. Ser. Volume 144, Number 3, June II 2000; DOI:10.1051/aas:2000221
[254]«The IC2118 association: new T Tauri stars in high-latitude molecular clouds» M. Kun, T. Prusti, S. Nikoli'c, L. E. B. Johansson, N. A. Walton; arXiv:astro-ph/0402353; DOI:10.1051/0004-6361:20034510
[257]«Astrophysical parameters of Galactic open clusters» N. V. Kharchenko, A. E. Piskunov, S. Röser, E. Schilbach and R.-D. Scholz; A&A Volume 438, Number 3, August II 2005; DOI:10.1051/0004-6361:20042523
[282]«A Census of Variability in Globular Cluster M68 (NGC 4590)» N. Kains, A. Arellano Ferro, R. Figuera Jaimes, D. M. Bramich, J. Skottfelt, U. G. Jørgensen, Y. Tsapras, R. A. Street, P. Browne, M. Dominik, K. Horne, M. Hundertmark, S. Ipatov, C. Snodgrass, I. A. Steele, K.A. Alsubai, V. Bozza, S. Calchi Novati, S. Ciceri, G. D'Ago, P. Galianni, S.-H. Gu, K. Harpsøe, T.C. Hinse, D. Juncher, H. Korhonen, L. Mancini, A. Popovas, M. Rabus, S. Rahvar, J. Southworth, J. Surdej, C. Vilela, X.-B. Wang, O. Wertz; arXiv:1502.07345v1; DOI:10.1051/0004-6361/201424600
[293]«NGC 4254: a spiral galaxy entering the Virgo cluster»; B. Vollmer, W. Huchtmeier, W. van Driel; A&A Volume 439, Number 3, September I 2005; DOI:10.1051/0004-6361:20041350
[298]«On the origin of the O and B-type stars with high velocities II Runaway stars and pulsars ejected from the nearby young stellar groups» R. Hoogerwerf, J.H.J. de Bruijne, P.T. de Zeeuw; arXiv:astro-ph/0010057; DOI:10.1051/0004-6361:20000014
[302]«The power of teaming up HST and Gaia: the first proper motion measurement of the distant cluster NGC 2419» D. Massari, L. Posti, A. Helmi, G. Fiorentino1 and E. Tolstoy; A&A Volume 598, February 2017; DOI:10.1051/0004-6361/201630174
[306]«Supermassive black holes in the Sbc spiral galaxies NGC 3310, NGC 4303 and NGC 4258» G. Pastorini, A. Marconi1 A. Capetti, D. J. Axon, A. Alonso-Herrero, J. Atkinson, D. Batcheldor, C. M. Carollo, J. Collett, L. Dressel, M. A. Hughes, D. Macchetto, W. Maciejewski, W. Sparks and R. van der Marel; A&A Volume 469, Number 2, July II 2007; DOI:10.1051/0004-6361:20066784
[307]«Interstellar anatomy of the TeV gamma-ray peak in the IC443 supernova remnant» P. Dell’Ova1, A. Gusdorf, M. Gerin, D. Riquelme, R. Güsten, A. Noriega-Crespo, L. N. Tram, M. Houde, P. Guillard, A. Lehmann, P. Lesaffre, F. Louvet, A. Marcowith and M. Padovani; A&A Volume 644, December 2020; DOI:10.1051/0004-6361/202038339
[319]«Star formation in the outer Galaxy: coronal properties of NGC 1893» M. Caramazza, G. Micela, L. Prisinzano, S. Sciortino, F. Damiani, F. Favata, J. R. Stauffer, A. Vallenari and S. J. Wolk; A&A Volume 539, March 2012; DOI:10.1051/0004-6361/201117256
[349]«NGC 7139 and its stellar neighbourhood» Weinberger, R.; Ziener, R.; Astronomy and Astrophysics, Vol. 191, p. 297-302 (1988); February 1988; ui.adsabs.harvard.edu/abs/1988A%26A...191..297W/abstract (2021-05-16)
[359]«Discovery of a jet-like structure with overionized plasma in the SNR IC 443» Emanuele Greco, Marco Miceli, Salvatore Orlando, Giovanni Peres, Eleonora Troja and Fabrizio Bocchino; A&A Volume 615, July 2018; DOI:10.1051/0004-6361/201832733
[361]«IRAM and Gaia views of multi-episodic star formation in IC 1396A — The origin and dynamics of the Class 0 protostar at the edge of an HII region» Aurora Sicilia-Aguilar, Nimesh Patel, Min Fang, Veronica Roccatagliata, Konstantin Getman and Paul Goldsmith; A&A Volume 622, February 2019; DOI:10.1051/0004-6361/201833207
[366]«Spectral variability of luminous early type stars. I. Peculiar supergiant HD199478» Markova, N.; Valchev, T.; Astronomy and Astrophysics, v.363, p.995-1004 (2000); ui.adsabs.harvard.edu/abs/2000A%26A...363..995M (2021-05-28)
[369]«The globular cluster NGC 288» Alcaino, G.; Astronomy and Astrophysics, Suppl. Ser., Vol. 21, p. 15 (1975); ui.adsabs.harvard.edu/abs/1975A%26AS...21...15A/abstract
[384]«The Gaia-ESO survey: 3D NLTE abundances in the open cluster NGC 2420 suggest atomic diffusion and turbulent mixing are at the origin of chemical abundance variations» Ekaterina Semenova, Maria Bergemann, Morgan Dea, Aldo Serenelli, Camilla Juul Hansen, Andrew J. Gallagher, Amelia Bayo, Thomas Bensby, Angela Bragaglia, Giovanni Carraro, Lorenzo Morbidelli, Elena Pancino and Rodolfo Smiljanic; A&A Volume 643, November 2020; DOI:10.1051/0004-6361/202038833
[392]«Interaction of hot stars and of the interstellar medium. VIII. Low-dispersion spectra of galactic nebulae and planetary nebulae.» Chopinet, M. ; Lortet-Zuckermann, M. C.; Astronomy and Astrophysics, Suppl. Ser., Vol. 25, p. 179-191 (1976); ui.adsabs.harvard.edu/abs/1976A%26AS...25..179C (2021-06-13)
[395]«NGC 3628: Ejection activity associated with quasars» H. Arp, E. M. Burbidge, Y. Chu, E. Flesch, F. Patat and G. Rupprecht; A&AVolume 391, Number 3, September I 2002, Pages 833 - 840; DOI:10.1051/0004-6361:20020828
[398]«New infrared star clusters in the Northern and Equatorial Milky Way with 2MASS» E. Bica, C. M. Dutra, J. Soares and B. Barbuy; A&A Volume 404, Number 1, June II 2003; DOI:10.1051/0004-6361:20030486
[399]«New detections of 51-60 A+-methanol masers towards IRAS sources.» van der Walt, D. J. ; Gaylard, M. J. ; MacLeod, G. C.; Astronomy and Astrophysics Supplement, v.110, p.81; April 1995; ui.adsabs.harvard.edu/abs/1995A%26AS..110...81V (2021-06-26)
[411]«Properties of central stars of planetary nebulae with distances in Gaia DR2» I. González-Santamaría, M. Manteiga, A. Manchado, A. Ulla and C. Dafonte; A&A Volume 630, October 2019; DOI:10.1051/0004-6361/201936162
[417]«Internal motions in planetary nebulae : NGC 7354, I 289 and HU 1-2» Sabbadin, F.; Bianchini, A.; Hamzaoglu, E.; Astronomy and Astrophysics, Suppl. Ser., Vol. 51, p. 119-126 (1983); ui.adsabs.harvard.edu/abs/1983A%26AS...51..119S/abstract (2021-08-02)
[422]«Searching for intergalactic star forming regions in Stephan’s Quintet with SITELLE» S. Duarte Puertas, J. Iglesias-Páramo, J. M. Vilchez, L. Drissen, C. Kehrig and T. Martin; A&A Volume 629, September 2019; DOI:10.1051/0004-6361/201935686
[430]«Neutral hydrogen observations of the interacting galaxies NGC 4725 and NGC 4747» Wevers, B. M. H. R.; Appleton, P. N.; Davies, R. D. ; Hart, L.; Astronomy and Astrophysics, Vol. 140, p. 125-140 (1984); ui.adsabs.harvard.edu/abs/1984A%26A...140..125W/abstract (2021-09-19)
[437]«Misclassified planetary nebulae» Acker, A.; Chopinet, M.; Pottasch, S. R.; Stenholm, B.; Astronomy and Astrophysics, Suppl. Ser., Vol. 71, p. 163-175 (1987); ui.adsabs.harvard.edu/abs/1987A%26AS...71..163A (2021-09-27)

Astrophysical Journal (ApJ)

Webseite: iopscience.iop.org/journal/0004-637X

[152]«Extended Structures of Planetary Nebulae Detected in H2 Emission»; Xuan Fang, Yong Zhang, Sun Kwok, Chih-Hao Hsia, Wayne Chau, Gerardo Ramos-Larios, Martin A. Guerrero; arXiv:1804.08840; DOI:10.3847/1538-4357/aac01e
[153]«The Magellanic Cloud Calibration of the Galactic Planetary Nebula Distance Scale» Letizia Stanghellini, Richard A. Shaw, and Eva Villaver; The Astrophysical Journal, Volume 689, Number 1, 2008; DOI:10.1086/592395
[167]«The most luminous quasar: S5 0014 +81» Kuhr, H.; Liebert, J. W.; Strittmatter, P. A.; Schmidt, G. D.; Mackay, C.; Astrophysical Journal, Vol. 275, p. L33-L37 (1983); 1983ApJ...275L..33K; DOI:10.1086/184166
[237]«A Measurement of the Black-Hole Mass in NGC 1097 using ALMA» Kyoko Onishi (1, 2), Satoru Iguchi, Kartik Sheth, Kotaro Kohno ((1) SOKENDAI (The Graduate University for Advanced Studies), (2) National Astronomical Observatory of Japan); DOI:10.1088/0004-637X/806/1/39
[239]«On the dark markings of the sky, with a catalogue of 182 such objects» Barnard, E. E.; Astrophysical Journal, 49, 1-24 (1919); DOI:10.1086/142439
[251]«Young Radio Pulsars in Galactic Globular Clusters» Jason Boyles, Duncan R. Lorimer, Phil J. Turk, Robert Mnatsakanov, Ryan S. Lynch, Scott M. Ransom, Paulo C. Freire, Khris Belczynski; The Astrophysical Journal, Volume 742, Number 1; DOI:10.1088/0004-637X/742/1/51
[278]«The ACS Survey of Galactic Globular Clusters: M54 and Young Populations in the Sagittarius Dwarf Spheroidal Galaxy» Michael H. Siegel, Aaron Dotter, Steven R. Majewski, Ata Sarajedini, Brian Chaboyer, David L. Nidever, Jay Anderson, Antonio Marín-Franch, Alfred Rosenberg, Luigi R. Bedin, Antonio Aparicio, Ivan King, Giampaolo Piotto, I. Neill Reid;; DOI:10.1086/522003
[289]«On the Identification of Radio Sources.» Baade, W.; Minkowski, R.; Astrophysical Journal, vol. 119, p.215; January 1954; DOI:10.1086/145813
[305]«Tidal Debris in the Starburst Galaxy NGC 3310: A New Tidal Loop?» Elizabeth H. Wehner and John S. Gallagher III 2004 ApJ 618 L21; DOI:10.1086/427651
[310]«A Catalogue of H II Regions» Stewart Sharpless, US Naval Observatory, 1959; DOI:10.1086/190049
[324]«Globular clusters in the outer Galactic halo: new HST/ACS imaging of 6 globular clusters and the Galactic globular cluster age-metallicity relation» Aaron Dotter (STScI), Ata Sarajedini (UF), Jay Anderson (STScI); arXiv:1106.4307; DOI:10.1088/0004-637X/738/1/74
[326]«HIDDEN MOLECULES IN PLANETARY NEBULAE: NEW DETECTIONS OF HCN AND HCO+ FROM A MULTI-OBJECT SURVEY» D. R. Schmidt and L. M. Ziurys; The Astrophysical Journal, Volume 817, Number 2; DOI:10.3847/0004-637X/817/2/175
[327]«The Population of Galactic Planetary Nebulae: a Study of Distance Scales and Central Stars Based on the Second Gaia Release» Letizia Stanghellini, Beatrice Bucciarelli, Mario G. Lattanzi, and Roberto Morbidelli; The Astrophysical Journal, Volume 889, Number 1; DOI:10.3847/1538-4357/ab59e4
[329]«Discovery of the First Quadruple Gravitationally Lensed Quasar Candidate with Pan-STARRS» C. T. Berghea, George J. Nelson, C. E. Rusu, C. R. Keeton, and R. P. Dudik; The Astrophysical Journal, Volume 844, Number 2; DOI:10.3847/1538-4357/aa7aa6
[330]«Andromeda's Parachute: A Bright Quadruply Lensed Quasar at z=2.377» Kate H. R. Rubin, John M. O'Meara, Kathy L. Cooksey, Mateusz Matuszewski, Luca Rizzi, Gregory W. Doppmann, Shui Hung Kwok, D. Christopher Martin, Anna M. Moore, Patrick Morrissey, James D. Neill; DOI:10.3847/1538-4357/aaaeb7
[332]«Properties of Some Old Planetary Nebulae» Abell, G. O.; Astrophysical Journal, vol. 144, p.259, April 1966; DOI:10.1086/148602
[333]«The Planetary Nebula A39: An Observational Benchmark for Numerical Modeling of Photoionized Plasmas» George. H. Jacoby, Gary. J. Ferland, and Kirk T. Korista; The Astrophysical Journal, Volume 560, Number 1; DOI:10.1086/322489
[335]«The Discovery of Tidal Tails around the Globular Cluster NGC 5466» Belokurov, V.; Evans, N. W.; Irwin, M. J.; Hewett, P. C.; Wilkinson, M. I.; The Astrophysical Journal, Volume 637, Issue 1, pp. L29-L32. January 2006; DOI:10.1086/500362
[337]«Optical Spectrum of the Compact Planetary Nebula IC 5117» Siek Hyung, Lawrence H. Aller, Walter A. Feibelman, and Seong-Jae Lee; The Astrophysical Journal, Volume 563, Number 2; DOI:10.1086/323962
[338]«Kinematical Analysis of a Sample of Bipolar Planetary Nebulae» Martina Dobrinčić, Eva Villaver, Martín A. Guerrero, and Arturo Manchado; Published 2008 May 13; The Astronomical Journal, Volume 135, Number 6; DOI:10.1088/0004-6256/135/6/2199
[340]«Studies of the infrared source CRL 2688» Ney, E. P.; Merrill, K. M.; Becklin, E. E.; Neugebauer, G.; Wynn-Williams, C. G.; Astrophysical Journal, Vol. 198, p. L129-L134 (1975); June 1975; DOI:10.1086/181829
[344]«A DETAILED SPATIOKINEMATIC MODEL OF THE CONICAL OUTFLOW OF THE MULTIPOLAR PLANETARY NEBULA NGC 7026» D. M. Clark, J. A. López, W. Steffen, and M. G. Richer; Published 2013 January 22; The Astronomical Journal, Volume 145, Number 3; DOI:10.1088/0004-6256/145/3/57
[345]«XMM-Newton Observations of the Bipolar Planetary Nebulae NGC 2346 and NGC 7026» Robert A. Gruendl, Martín A. Guerrero, You-Hua Chu, and Rosa M. Williams; The Astrophysical Journal, Volume 653, Number 1, 2006; DOI:10.1086/507940
[355]«THE CALIFORNIA MOLECULAR CLOUD» Charles J. Lada, Marco Lombardi, and João F. Alves; Published 2009 August 25 • © 2009. The American Astronomical Society; The Astrophysical Journal, Volume 703, Number 1; DOI:10.1088/0004-637X/703/1/52
[356]«A Census of the Young Cluster IC 348» K. L. Luhman, John R. Stauffer, A. A. Muench, G. H. Rieke, E. A. Lada, J. Bouvier, and C. J. Lada; The Astrophysical Journal, Volume 593, Number 2; DOI:10.1086/376594
[360]«Near-infrared Variability of Low-mass Stars in IC 1396A and Tr 37» Huan Y. A. Meng, G. H. Rieke, Jinyoung Serena Kim, Aurora Sicilia-Aguilar, N. J. G. Cross, Taran Esplin, L. M. Rebull, and Klaus W. Hodapp; Published 2019 June 6; The Astrophysical Journal, Volume 878, Number 1; DOI:10.3847/1538-4357/ab1b14
[365]«KINEMATIC DISTANCES OF GALACTIC PLANETARY NEBULAE» A. Y. Yang, W. W. Tian, H. Zhu, D. A. Leahy, and D. Wu; Published 2016 March 23; The Astrophysical Journal Supplement Series, Volume 223, Number 1; DOI:10.3847/0067-0049/223/1/6
[367]«The Cluster-forming Site AFGL 5157: Colliding Filamentary Clouds and Star Formation» L. K. Dewangan; Published 2019 October 14; The Astrophysical Journal, Volume 884, Number 1; DOI:10.3847/1538-4357/ab4189
[374]«The Discovery of Two Extremely Low Luminosity Milky Way Globular Clusters» S. Koposov, J. T. A. de Jong, V. Belokurov, H.-W. Rix, D. B. Zucker, N. W. Evans, G. Gilmore, M. J. Irwin, and E. F. Bell; The Astrophysical Journal, Volume 669, Number 1; arXiv:0706.0019; DOI:10.1086/521422
[387]«The Young Open Clusters King 12, NGC 7788, and NGC 7790: Pre-Main Sequence Stars and Extended Stellar Halos» T. J. Davidge; Published 2012 December 4; The Astrophysical Journal, Volume 761, Number 2; arXiv:1211.6398; DOI:10.1088/0004-637X/761/2/155
[388]«Catalogue and Bibliography of Stars of Classes B and A whose Spectra have Bright Hydrogen Lines» Merrill, Paul W.; Burwell, Cora G.; Astrophysical Journal, vol. 78, p.87, September 1933; DOI:10.1086/143490
[403]«Radio Emission from a Number of Possible Supernovae Remnants» Hogg, D. E.; Astrophysical Journal, vol. 144, p.819, 1966; ui.adsabs.harvard.edu/abs/1966ApJ...144..819H (2021-07-04)
[410]«Gas Accretion within the Dust Cavity in AB Aur» Pablo Rivière-Marichalar, Asunción Fuente, Clément Baruteau, Roberto Neri, Sandra P. Treviño-Morales, Andrés Carmona, Marcelino Agúndez, and Rafael Bachiller; The Astrophysical Journal Letters, Volume 879, Number 1, 2019; DOI:10.3847/2041-8213/ab289d
[419]«The IUE Spectra of Three Optically Narrow-Line O VI Planetary Nebulae: NGC 1501, IC 1747, and IC 1297» Walter A. Feibelman; The Astrophysical Journal Supplement Series, Volume 119, Number 2, 1998; DOI:10.1086/313160
[425]«Catalogue of CO radial velocities toward galactic HII regions» Blitz, L. ; Fich, M. ; Stark, A. A.; Astrophysical Journal, Suppl. Ser., Vol. 49, p. 183-206 (1982); DOI:10.1086/190795
[428]«Evidence of a Supermassive Black Hole in the Galaxy NGC 1023 from the Nuclear Stellar Dynamics» G. A. Bower, R. F. Green, R. Bender, K. Gebhardt, T. R. Lauer, J. Magorrian, D. O. Richstone, A. Danks, T. Gull, J. Hutchings, C. Joseph, M. E. Kaiser, D. Weistrop, B. Woodgate, C. Nelson, and E. M. Malumuth; The Astrophysical Journal, Volume 550, Number 1; DOI:10.1086/319730
[433]«Tidal effects as criteria for membership in small groups of galaxies: application to VV 166.» Kormendy, J.; Sargent, W. L. W.; Astrophysical Journal, Vol. 193, p. 19-25 (1974); DOI:10.1086/153122
[434]«Galaxy collisions in dense groups.» Hickson, P.; Richstone, D. O.; Turner, E. L.; Astrophysical Journal, Vol. 213, p. 323-326 (1977); DOI:10.1086/155158
[439]«The Interacting System NGC 7753--7752 (Arp 86). II. N-Body Modeling» Salo, Heikki ; Laurikainen, Eija; Astrophysical Journal v.410, p.586, June 1993; DOI:10.1086/172777
[442]«The Ghost of a Dwarf Galaxy: Fossils of the Hierarchical Formation of the Nearby Spiral Galaxy NGC 5907» David Martínez-Delgado, Jorge Peñarrubia, R. Jay Gabany, Ignacio Trujillo, Steven R. Majewski, and M. Pohlen; The Astrophysical Journal, Volume 689, Number 1, 2008; DOI:10.1086/592555
[443]«Photographs of nebulae with the 60-inch reflector, 1917-1919» Pease, F. G; Astrophysical Journal, 51, 276-308 (1920); DOI:10.1086/142552
[444]«The Next Generation Virgo Cluster Survey. IV. NGC 4216: A Bombarded Spiral in the Virgo Cluster» Sanjaya Paudel, Pierre-Alain Duc, Patrick Côté, Jean-Charles Cuillandre, Laura Ferrarese, Etienne Ferriere, Stephen D. J. Gwyn, J. Christopher Mihos, Bernd Vollmer, Michael L. Balogh, Ray G. Carlberg, Samuel Boissier, Alessandro Boselli, Patrick R. Durrell, Eric Emsellem, Lauren A. MacArthur, Simona Mei1, Leo Michel-Dansac, and Wim van Driel; The Astrophysical Journal, Volume 767, Number 2, 2013; DOI:10.1088/0004-637X/767/2/133

Bücher und Atlanten

[1]«Atlas der schönsten Himmelsobjekte» von Hans Vehrenberg; 4. Auflage von «Mein Messier-Buch», Nachdruck 1985; Treugesell-Verlag KG, Düsseldorf
[2]«Atlas des Sonnensystems» von Patrick Moore, Garry Hunt, Iain Nicholson und Peter Cattermole; Royal Astronomical Society; Herder Freiburg, Basel, Wien; ISBN 3-451-19613-1
[3]«Bildatlas des Weltraums» von Antonin Rükl, Verlag Werner Dausien, ISBN 3-7684-2808-7
[4]«Burnham's Celestial Handbook: An Observer's Guide to the Universe Beyond the Solar System» by Robert Burnham; Dover Publications, Inc.; Voume I: ISBN 0-486-23567-X; Volume II: ISBN 0-486-23568-8; Volume III: ISBN 0-486-23673-0
[5]«Cambridge Star Atlas 2000.0» by Wil Tirion; Cambridge University Press; ISBN 0-521-26322-0
[6]«Das neue Lexikon; Band 1-10»; Weltbild Verlag; © Bibliographisches Institut, Mannheim 1984
[7]«Der grosse Kosmos-Himmelsführer» von Ian Ridpath und Wil Tirion; Kosmos Verlag; ISBN 3-440-05787-9
[8]«Der Sternenhimmel: Begleiter zum Jahrbuch» von Ernst Hügli, Hans Roth und Karl Städeli; Salle + Sauerländer, ISBN 3-7941-2841-9 (Sauerländer), ISBN 3-7935-5024-9 (Salle)
[9]«Drehbare Sternkarte SIRIUS» von H. Suter-Haug; Hallwag-Verlag, Bern
[10]«dtv-Atlas zur Astronomie» von Joachim Herrmann; Deutscher Taschenbuch Verlag; ISBN 3-423-03006-2
[11]«Eine kurze Geschichte der Zeit» von Stephen W. Hawking; Lizenzausgabe für den Buchclub Ex Libris Zürich 1990; Copyright © 1988 by Rowohlt Verlag GmbH, Reinbeck bei Hamburg
[12]«The Night Sky Observer's Guide, Volume I» George Robert Kepple, Glen W. Sanner, Willman-Bell, Inc., ISBN 0-943396-58-1
[13]«The Night Sky Observer's Guide, Volume II» George Robert Kepple, Glen W. Sanner, Willman-Bell, Inc., ISBN 0-943396-60-3
[14]«Gekrümmter Raum und verbogene Zeit: Einsteins Vermächtnis» von Kip S. Thorne; Droemersche Verlagsanstalt, Th. Knaur Nachf., München 1994; ISBN 3-426-26718-7
[15]«Hartung's Astronomical Objects for Southern Telescopes» by David Malin and David J. Frew; Melbourne University Press 1995; ISBN 0-522-84553-3
[17]«Planetary Nebulae: A Practical Guide and Handbook for Amateur Astronomers» by Steven J. Hynes; 1991, Willmann-Bell, Inc., Richmond Virginia; ISBN 0-943396-30-1
[18]«Sky Atlas 2000.0» by Wil Tirion; Cambridge University Press; ISBN 0-521-24467-6
[19]«Reise durch das Universum: Sterne»; Time-Life Bücher, Amsterdam; ISBN 90-6182-369-2
[20]«Sternbilder und ihre Mythen» von Gerhard Fasching; Zweite, verbesserte Auflage; Springer Verlag Wien, New York; ISBN 3-211-82552-5 (Wien); ISBN 0-387-82552-5 (New York)
[21]«Taschenatlas der Sternbilder» von Josef Klepesta und Antonin Rükl; Verlag Werner Dausien; ISBN 3-7684-2384-0
[22]«The Deep Sky Field Guide to Uranometria 2000.0» by Murray Cragin, James Lucik and Barry Rappaport; Willmann-Bell, Inc.; ISBN 0-943396-38-7
[23]«Uranometria 2000.0, Volume I» by Wil Tirion, Barry Rappaport and George Lovi; Willmann-Bell, Inc.; ISBN 0-943396-14-X
[24]«Uranometria 2000.0, Volume II» by Wil Tirion, Barry Rappaport and George Lovi; Willmann-Bell, Inc.; ISBN 0-943396-15-8
[25]«Das Taschenbuch vom Sternenhimmel» von Peter von Eynern; Wilhelm Heyne Verlag, München, 1972
[26]«Visual Astronomy of the Deep Sky» by Roger N. Clark; Cambridge University Press
[27]«Der Komet» von Carl Sagan und Ann Druyan; Buchclub Ex Libris Zürich
[28]«Signale von anderen Welten» von Prof. Frank Drake und Dava Sobel; Bechtermünz Verlag; ISBN 3-86047-769-2

Centre de Données astronomiques de Strasbourg (CDS)

Webseite: cdsweb.u-strasbg.fr

[16]Centre de Données astronomiques de Strasbourg; cds.u-strasbg.fr
[140]Hickson's Compact groups of Galaxies: VII/213; cdsarc.u-strasbg.fr/viz-bin/cat/VII/213
[141]Strasbourg-ESO Catalogue of Galactic Planetary Nebulae; A. Acker, F. Ochsenbein, B. Stenholm, R. Tylenda, J. Marcout, C. Schohn; European Southern Observatory; ISBN 3-923524-41-2 (1992); cdsarc.unistra.fr/viz-bin/cat/V/84 (2021-02-18)
[142]NGC 2000.0, The Complete New General Catalogue and Index Catalogue of Nebulae and Star Clusters by J.L.E. Dreyer; edited by Roger W. Sinnott; Sky Publishing Corporation and Cambridge University Press (1988); cdsarc.unistra.fr/viz-bin/cat/VII/118 (2021-02-18)
[143]Catalogue of Galactic Globular Clusters; R. Monella, 1985; Coelum LIII, 287; cdsarc.u-strasbg.fr/viz-bin/cat/VII/103
[144]Catalogue of Principal Galaxies (PGC); Paturel G., Fouque P., Bottinelli L., Gouguenheim L.; Astron. Astrophys. Suppl. Ser. 80, 299 (1989); cdsarc.unistra.fr/viz-bin/cat/VII/119 (2021-02-18)
[145]SIMBAD astronomical database; simbad.u-strasbg.fr/simbad
[147]Aladin Lite; aladin.u-strasbg.fr/AladinLite (2020-12-23)
[226]HYPERLEDA. I. Catalog of galaxies (Paturel+, 2003); cdsarc.unistra.fr/viz-bin/cat/VII/237 (2021-01-13)

European Southern Observatory (ESO)

Webseite: eso.org

[195]ESO Online Digitized Sky Survey; archive.eso.org/dss/dss (2020-12-27)
[208]New ESO’s VLT image of the Skull Nebula; eso.org/public/images/eso2019a (2020-12-30)
[221]NGC 2264 and the Christmas Tree cluster; eso.org/public/images/eso0848a (2021-01-08)
[229]MUSE image of the Saturn Nebula; eso.org/public/images/eso1731a (2021-01-17)
[236]Spiral galaxy NGC 1097; eso.org/public/images/eso0438d (2021-01-20)
[275]Barnard's Galaxy; eso.org/public/images/eso0938a (2021-02-17)
[279]VISTA infrared image of the globular star cluster Messier 55; eso.org/public/unitedkingdom/images/eso1220a (2021-02-19)
[284]The edge-on galaxy NGC 1055; eso.org/public/unitedkingdom/images/eso1707a (2021-02-26)
[292]Why so blue?; eso.org/public/images/potw1636a (2021-03-07)
[412]Red and Long Dead; eso.org/public/images/potw1927a (2021-07-26)

European Space Agency (ESA)

Webseite: esa.int

[182]The Inky Abyss; esahubble.org/images/potw1932a (2020-12-22)
[184]Iridescent Glory of Nearby Planetary Nebula Showcased on Astronomy Day; esahubble.org/images/heic0307a (2020-12-23)
[185]Hubble image of M101; esahubble.org/images/opo0907h (2020-12-23)
[186]Seeing double; esahubble.org/images/potw1403a (2020-12-23)
[187]Hubble's planetary nebula gallery. A view of NGC 6826; esahubble.org/images/opo9738d (2020-12-24)
[188]Out of this whirl: The Whirlpool Galaxy (M51) and companion galaxy; esahubble.org/images/heic0506a (2020-12-24)
[189]Messier 61 looks straight into the camera; esahubble.org/images/potw1324a (2020-12-24)
[191]A hungry starburst galaxy; esahubble.org/images/potw1417a (2020-12-24)
[198]The belly of the cosmic whale; esahubble.org/images/potw1146a (2020-12-28)
[205]Twins with differences; esahubble.org/images/potw1805a (2020-12-30)
[213]Quasar 3C 273; esahubble.org/images/opo0303c (2020-12-31)
[214]Most detailed image of the Crab Nebula; esahubble.org/images/heic0515a (2020-12-31)
[216]Old stars with a youthful glow; esahubble.org/images/potw1107a (2020-12-31)
[220]Hubble's variable nebula (NGC 2261); esahubble.org/images/opo9935c (2021-01-08)
[222]The largest of its kind; esahubble.org/images/potw1913a (2021-01-10)
[223]Blue rejuvenation; esahubble.org/images/potw1914a (2021-01-10)
[224]Hubble views a cosmic oyster and pearl in NGC 1501; esa.int/ESA_Multimedia/Images/2016/09/Hubble_views_a_cosmic_oyster_and_pearl_in_NGC_1501 (2021-01-10)
[234]NGC 7009 illustration; esahubble.org/images/opo9738m (2021-01-19)
[241]The crammed centre of Messier 22; esahubble.org/images/potw1514a (2021-01-22)
[245]Bucking the trend; esahubble.org/images/potw1921a (2021-01-22)
[249]Ancient orbs; esahubble.org/images/potw1236a (2021-01-24)
[250]Breathing new life into an old cluster; esahubble.org/images/potw1118a (2021-01-24)
[259]A galactic sunflower; esahubble.org/images/potw1536a (2021-02-06)
[262]Vampires and collisions rejuvenate stars; esahubble.org/news/heic0918 (2021-02-08)
[273]Invisible X-rays; esahubble.org/images/potw1911a (2021-02-15)
[280]A collection of ancient stars; esahubble.org/images/potw1234a (2021-02-19)
[290]Spotlight on IC 3583; esahubble.org/images/potw1648a (2021-03-02)
[300]HERSCHEL IMAGE OF IC 5146; sci.esa.int/web/herschel/-/48624-herschel-image-of-ic-5146 (2021-03-31)
[301]The two mysterious populations of NGC 2419; esahubble.org/images/potw1908a (2021-04-06)
[309]Young star rebels against its parent cloud; esa.int/Science_Exploration/Space_Science/Young_star_rebels_against_its_parent_cloud (2021-04-11)
[323]A remote outpost of the Milky Way; esahubble.org/images/potw1137a (2021-05-02)
[343]Hubble images searchlight beams from a preplanetary nebula; esahubble.org/images/potw1217a (2021-05-12)
[350]Smoky shells; esahubble.org/images/potw1250a (2021-05-16)
[353]NGC 1579: The Trifid of the North; esahubble.org/images/potw1322a (2021-05-21)
[368]Family of stars breaking up; esahubble.org/images/potw1111a (2021-05-30)
[373]A unique cluster: one of the hidden 15; esa.int/ESA_Multimedia/Images/2013/04/A_unique_cluster_one_of_the_hidden_15 (2021-05-31)
[406]A curious ring in star factory NGC 7538; sci.esa.int/s/WLGZKbw (2021-07-07)
[409]A young star takes centre stage; esahubble.org/images/potw1509a (2021-07-10)
[415]Abell 30: a born-again planetary nebula; esa.int/ESA_Multimedia/Images/2012/11/Abell_30_a_born-again_planetary_nebula (2021-07-30)
[427]Hubble’s Hidden Galaxy; esahubble.org/images/potw1727a (2021-08-29)
[435]Spiral, elliptical, irregular; esahubble.org/images/potw1924a (2021-09-26)
[440]Spiral spins both ways; esahubble.org/images/potw1125a (2021-10-03)


Webseite: interstellarum.de

[93]Objekte der Saison: Cr 399 von Jürgen Lamprecht; Interstellarum3/95, S.48
[94]Objekte der Saison: PK 205+14.1 von Ronald C. Stoyan; Interstellarum1/96, S.54
[95]Objekte der Saison: 3C 273 von Klaus Veit; Interstellarum2/96, S.50
[96]Objekte der Saison: NGC 4169/73/74/75 von Klaus Veit; Interstellarum2/96, S.52
[97]Objekte für lange Brennweiten: Die Galaxie M63 von Peter Riepe und Stefan Binnewies; Interstellarum2/96, S.60
[98]Objekte der Saison: M92 von Jürgen Lamprecht; Interstellarum3/95, S.53

Memoirs of the Royal Astronomical Society

Webseite: ras.ac.uk/library/archives

[313]«A New General Catalogue of Nebulae and Clusters of Stars, being the Catalogue of the late Sir John F.W. Herschel, Bart., revised, corrected, and enlarged» Dreyer, J. L. E. (1888); Memoirs of the Royal Astronomical Society. 49: 1–237. Bibcode:1888MmRAS..49....1D.; ui.adsabs.harvard.edu/abs/1888MmRAS..49....1D/abstract (2021-04-14)
[314]«Index Catalogue of Nebulæ found in the years 1888 to 1894, with Notes and Corrections to the New General Catalogue» Dreyer, J. L. E.; Memoirs of the Royal Astronomical Society, Vol. 51, p.185; 1985; ui.adsabs.harvard.edu/abs/1895MmRAS..51..185D/abstract (2021-04-14)
[315]«Second Index Catalogue of Nebulae and Clusters of Stars; containing objects found in the years 1895 to 1907, with Notes and Corrections to the New General Catalogue and to the Index Catalogue for 1888–94» Dreyer, J. L. E. (1910); Memoirs of the Royal Astronomical Society. 59: 105–198. Bibcode:1910MmRAS..59..105D; ui.adsabs.harvard.edu/abs/1910MmRAS..59..105D/abstract (2021-04-14)
[400]«Young stellar objects in NGC 6823» B. Riaz, E. L. Martín, R. Tata, J.-L. Monin, N. Phan-Bao, H. Bouy; Monthly Notices of the Royal Astronomical Society, Volume 419, Issue 3, January 2012, Pages 1887–1912; DOI:10.1111/j.1365-2966.2011.19841.x

Monthly Notices of the Royal Astronomical Society (MNRAS)

Webseite: academic.oup.com/mnras

[285]«Spiral structure of the Third Galactic Quadrant and the solution to the Canis Major debate» A. Moitinho, R.A. Vazquez, G. Carraro, G. Baume, E.E Giorgi, W. Lyra; arXiv:astro-ph/0602493v1; DOI:10.1111/j.1745-3933.2006.00163.x
[316]«Corrections to the New General Catalogue resulting from the revision of Sir William Herschel's Three Catalogues of Nebulae» Dreyer, J. L. E. (1912); Monthly Notices of the Royal Astronomical Society. 73: 37–40.; DOI:10.1093/mnras/73.1.37
[320]«Sejong Open Cluster Survey (SOS) – III. The young open cluster NGC 1893 in the H II region W8» Beomdu Lim, Hwankyung Sung, Jinyoung S. Kim, Michael S. Bessell, Byeong-Gon Park Monthly Notices of the Royal Astronomical Society, Volume 443, Issue 1, 1 September 2014, Pages 454–473; DOI:10.1093/mnras/stu1170
[321]«The interaction of the planetary nebula NGC 6894 with the ISM magnetic field» Soker, Noam; Zucker, Daniel B.; Monthly Notices of the Royal Astronomical Society, Volume 289, Issue 3, pp. 665-670.; August 1997; DOI:10.1093/mnras/289.3.665
[322]«Near-infrared spectroscopy of (proto)-planetary nebulae: molecular hydrogen excitation as an evolutionary tracer» Christopher J. Davis, Michael D. Smith, Luke Stern, Thomas H. Kerr, Jean E. Chiar; Monthly Notices of the Royal Astronomical Society, Volume 344, Issue 1, September 2003, Pages 262–282; DOI:10.1046/j.1365-8711.2003.06820.x
[339]«Pushing the limits: detecting H2 emission from faint bipolar planetary nebulae in the IPHAS sample» G. Ramos-Larios, M. A. Guerrero, L. Sabin, E. Santamaría; Monthly Notices of the Royal Astronomical Society, Volume 470, Issue 3, September 2017, Pages 3707–3719; DOI:10.1093/mnras/stx1519
[358]«Large-scale star formation in Auriga region» A K Pandey, Saurabh Sharma, N Kobayashi, Y Sarugaku, K Ogura; Monthly Notices of the Royal Astronomical Society, Volume 492, Issue 2, February 2020, Pages 2446–2467,; DOI:10.1093/mnras/stz3596
[362]«Young star clusters and the structure of the second Galactic quadrant II» J A Molina Lera, G Baume, R Gamen; Monthly Notices of the Royal Astronomical Society, Volume 488, Issue 2, September 2019, Pages 2158–2174; DOI:10.1093/mnras/stz1710
[370]«On the extended stellar structure around NGC 288» Andrés E. Piatti; Monthly Notices of the Royal Astronomical Society, Volume 473, Issue 1, January 2018, Pages 492–497; DOI:10.1093/mnras/stx2471
[371]«Rediscovering the tidal tails of NGC 288 with Gaia DR2» Kaderali, Shaziana; Hunt, Jason A. S.; Webb, Jeremy J.; Price-Jones, Natalie; Carlberg, Raymond; Monthly Notices of the Royal Astronomical Society: Letters, Volume 484, Issue 1, p.L114-L118; March 2019; arXiv:1809.04108; DOI:10.1093/mnrasl/slz015
[372]«Lifting the dust veil from the globular cluster Palomar 2» Charles Bonatto, Ana L Chies-Santos; Monthly Notices of the Royal Astronomical Society, Volume 493, Issue 2, April 2020, Pages 2688–2693; arXiv:2002.08812; DOI:10.1093/mnras/staa510
[378]«X-ray and radio observations of the γ Cygni supernova remnant G78.2+2.1» D. A. Leahy, K. Green, S. Ranasinghe Monthly Notices of the Royal Astronomical Society, Volume 436, Issue 2, 01 December 2013, Pages 968–977; DOI:10.1093/mnras/stt1596
[381]«Comprehensive abundance analysis of red giants in the open clusters NGC 2527, 2682, 2482, 2539, 2335, 2251 and 2266» Arumalla B. S. Reddy, Sunetra Giridhar, David L. Lambert; Monthly Notices of the Royal Astronomical Society, Volume 431, Issue 4, 1 June 2013, Pages 3338–3348; DOI:10.1093/mnras/stt412
[386]«Linking the rotation of a cluster to the spins of its stars: the kinematics of NGC 6791 and NGC 6819 in 3D» S Kamann, N J Bastian, M Gieles, E Balbinot, V Hénault-Brunet; Monthly Notices of the Royal Astronomical Society, Volume 483, Issue 2, February 2019, Pages 2197–2206; arXiv:1811.08476; DOI:10.1093/mnras/sty3144
[401]«ETHOS 1: a high-latitude planetary nebula with jets forged by a post-common-envelope binary central star» B. Miszalski, R. L. M. Corradi, H. M. J. Boffin, D. Jones, L. Sabin, M. Santander-García, P. Rodríguez-Gil, M. M. Rubio-Díez; Monthly Notices of the Royal Astronomical Society, Volume 413, Issue 2, May 2011, Pages 1264–1274; DOI:10.1111/j.1365-2966.2011.18212.x
[405]«The shaping of planetary nebula Sh 2–188 through interaction with the interstellar medium» C. J. Wareing, T. J. O'Brien, Albert A. Zijlstra, K. B. Kwitter, J. Irwin, N. Wright, R. Greimel, J. E. Drew; Monthly Notices of the Royal Astronomical Society, Volume 366, Issue 2, February 2006, Pages 387–396; DOI:10.1111/j.1365-2966.2005.09875.x
[413]«Physical conditions in the planetary nebula Abell 30» R. Wesson, X.-W. Liu, M. J. Barlow; Monthly Notices of the Royal Astronomical Society, Volume 340, Issue 1, March 2003, Pages 253–263; DOI:10.1046/j.1365-8711.2003.06289.x
[414]«Abell 30 - A binary central star among the born-again planetary nebulae» George H Jacoby, Todd C Hillwig, David Jones; Monthly Notices of the Royal Astronomical Society: Letters, Volume 498, Issue 1, October 2020, Pages L114–L118; arXiv:2008.01488; DOI:10.1093/mnrasl/slaa138
[420]«Nébuleuses nouvelles découvertes et observées à l'Observatoire de Marseille» Par M. E. Stephan; Monthly Notices of the Royal Astronomical Society, Volume 37, Issue 6, April 1877, Pages 334–339; DOI:10.1093/mnras/37.6.334
[429]«The young nuclear stellar disc in the SB0 galaxy NGC 1023» E. M. Corsini, L. Morelli, N. Pastorello, E. Dalla Bontà, A. Pizzella, E. Portaluri; Monthly Notices of the Royal Astronomical Society, Volume 457, Issue 2, 01 April 2016, Pages 1198–1207; DOI:10.1093/mnras/stv2864
[438]«A multiwavelength study of the starburst galaxy NGC 7771» Richard I. Davies, Almudena Alonso-Herrero, Martin J. Ward; Monthly Notices of the Royal Astronomical Society, Volume 291, Issue 3, November 1997, Pages 557–568; DOI:10.1093/mnras/291.3.557

National Aeronautics and Space Administration (NASA)

Webseite: nasa.gov

[151]Hubble's sharpest view of the Orion Nebula; hubblesite.org/contents/media/images/2006/01/1826-Image.html (2021-01-03)
[178]Happy Sweet Sixteen, Hubble Telescope! – Starburst Galaxy M82; hubblesite.org/contents/media/images/2006/14/1876-Image.html (2020-12-21)
[179]Hubble/Galex/Spitzer Composite Image Of M81; hubblesite.org/contents/media/images/2007/19/2130-Image.html (2020-12-21)
[180]Hubble Photographs Grand Design Spiral Galaxy M81; hubblesite.org/contents/media/images/2007/19/2127-Image.html (2020-12-21)
[181]Dust Band Around The Nucleus Of «Black Eye Galaxy» M64; hubblesite.org/contents/media/images/2004/04/1447-Image.html (2020-12-21)
[183]The Majestic Sombrero Galaxy (M104); hubblesite.org/contents/media/images/2003/28/1415-Image.html (2020-12-23)
[190]Hubbles Messier Catalog: Messier 61; nasa.gov/feature/goddard/2017/messier-61 (2020-12-24)
[194]NASA/IPAC Extragalactic Database (NED); ned.ipac.caltech.edu (2020-12-27)
[200]Horsehead Nebula in Infrared; hubblesite.org/image/3844/printshop (2020-12-28)
[203]The Tadpole Galaxy: Distorted Victim of Cosmic Collision; hubblesite.org/contents/media/images/2002/11/1181-Image.html (2020-12-29)
[210]NGC 5466 Visualization; hubblesite.org/video/1200/news
[211]Dusty Helix Nebula; spitzer.caltech.edu/images/1746-ssc2007-03a1-Dusty-Helix-Nebula (2020-12-30)
[215]Explore - The Night Sky | Hubble’s Messier Catalog; nasa.gov/content/goddard/hubble-s-messier-catalog (2020-12-31)
[225]NGC 2392; hubblesite.org/contents/media/images/2000/07/940-Image.html (2021-01-10)
[230]Black Hole-Powered Jet Of Electrons And Sub-Atomic Particles Streams From Center Of Galaxy M87; hubblesite.org/contents/media/images/2000/20/968-Image.html (2021-01-17)
[231]Full ACS image of NGC 5866; hubblesite.org/contents/media/images/2006/24/1933-Image.html (2021-01-17)
[240]Messier 28; nasa.gov/feature/goddard/2017/messier-28 (2021-01-22)
[242]HINT OF PLANET-SIZED DRIFTERS BEWILDERS HUBBLE SCIENTISTS; hubblesite.org/contents/news-releases/2001/news-2001-20.html (2021-01-22)
[243]Messier 60; nasa.gov/feature/goddard/2017/messier-60 (2021-01-22)
[244]ODD GALAXY COUPLE ON SPACE VOYAGE; September 06, 2012 9:00AM (EDT); Release ID: 2012-38; hubblesite.org/contents/news-releases/2012/news-2012-38.html (2021-01-22)
[246]Messier 59; nasa.gov/feature/goddard/2018/messier-59 (2021-01-22)
[247]THE CAT'S EYE NEBULA: DYING STAR CREATES FANTASY-LIKE SCULPTURE OF GAS AND DUST; hubblesite.org/contents/media/images/2004/27/1578-Image.html (2021-01-24)
[253]Witch Head Nebula; nasa.gov/multimedia/imagegallery/image_feature_1209.html (2021-01-30)
[261]Explore - The Night Sky | Hubble’s Caldwell Catalog; nasa.gov/content/goddard/hubble-s-caldwell-catalog (2021-02-08)
[272]Behind the gas and dust of Orion's trapezium cluster; hubblesite.org/contents/media/images/2000/19/967-Image.html (2021-02-14)
[276]Hubble X: A glowing gas cloud in the star-forming region of galaxy NGC 6822; hubblesite.org/contents/media/images/2001/01/1012-Image.html (2021-02-17)
[294]Spiral Galaxy Pair NGC 4302 and NGC 4298; hubblesite.org/image/4019/gallery (2021-03-10)
[308]Hubble Serves Up a Holiday Snow Angel; nasa.gov/mission_pages/hubble/science/snow-angel.html (2021-04-11)
[334]Hubble Captures Re-energized Planetary Nebula; nasa.gov/image-feature/goddard/2021/hubble-captures-re-energized-planetary-nebula (2021-05-10)
[346]Hubble Sees a Celestial Swan and Butterfly; nasa.gov/mission_pages/hubble/science/ngc7026.html (2021-05-14)
[347]PLANETARY NEBULA NGC 7027: A SUN-LIKE STAR BURNING OUT; hubblesite.org/contents/media/images/1998/11/626-Image.html (2021-05-15)
[348]NGC 7027: Like a Metallic Jewel Bug in the Sky; nasa.gov/image-feature/ngc-7027-like-a-metallic-jewel-bug-in-the-sky (2021-05-15)
[351]NGC 1333 in the Infrared; spitzer.caltech.edu/image/ssc2005-24a1-ngc-1333-in-the-infrared (2021-05-20)
[352]IC 59 and IC 63 in Cassiopeia; science.nasa.gov/ic-59-and-ic-63-cassiopeia (2021-05-18)
[418]Hubble Sees Stars That Go Out With a Whimper; nasa.gov/content/hubble-sees-stars-that-go-out-with-a-whimper (2021-08-03)
[421]Galactic Wreckage in Stephan's Quintet; nasa.gov/mission_pages/hubble/multimedia/ero/ero_stephan_quintet.html (2021-08-19)
[431]Hubble Sees Spiral in Andromeda; nasa.gov/image-feature/goddard/2017/hubble-sees-spiral-in-andromeda (2021-09-19)

National Science Foundation (NSF)

Webseite: nsf.gov

[157]Planetary Nebula Sampler by George H. Jacoby; noao.edu/jacoby/pn_gallery.html
[158]NOAO Image Gallery; noao.edu/image_gallery
[197]NOIRLab: Hockey Stick Galaxy NGC 4656; noirlab.edu/public/images/noao-ngc4656 (2020-12-28)
[209]NOAO Planetary Nebula Sampler; noao.edu/jacoby/index.html (2021-05-10)
[232]NOIRLab: M97, NGC 3587; noirlab.edu/public/images/noao-m97 (2021-01-19)
[233]NOIRLab: M108, NGC 3556; noirlab.edu/public/images/noao-m108
[256]Ghost Nebula, vdB 141; noirlab.edu/public/images/noao-vdb141 (2021-01-30)
[283]M76, NGC 650/651; noirlab.edu/public/images/noao-m76-kpno-0-9-meter (2021-02-25)
[286]Big Galaxy Collisions Can Stunt Star Formation; noirlab.edu/public/news/noao0808 (2021-03-01)
[291]M91, NGC 4548; noirlab.edu/public/images/noao-m91 (2021-03-03)
[295]M99; NGC 4254; noirlab.edu/public/images/noao-m99 (2021-03-10)
[297]Planetary nebula NGC 40; noirlab.edu/public/images/noao-ngc40w (2021-03-21)
[317]T Tauri in NGC 1555; noirlab.edu/public/images/noao-ttau (2021-04-14)
[328]Jones 1, PK 104-29.1; noirlab.edu/public/images/noao-jones1 (2021-05-05)
[377]Open Cluster IC 1311; noirlab.edu/public/images/noao-ic1311 (2021-06-03)

Publications of the Astronomical Society of the Pacific (PASP)

Webseite: iopscience.iop.org/journal/1538-3873

[264]«Updated Information on the Local Group» Sidney van den Bergh (DAO/HIA/NRC); arXiv:astro-ph/0001040; DOI:10.1086/316548
[331]«Globular Clusters and Planetary Nebulae Discovered on the National Geographic Society-Palomar Observatory Sky Survey» Abell, G. O.; Publications of the Astronomical Society of the Pacific, Vol. 67, No. 397, p.258-261, August 1955; DOI:10.1086/126815
[397]«New Emission Nebulae» R. Minkowski; Publications of the Astronomical Society of the Pacific, Volume 58, Number 344, 1946; DOI:10.1086/125855
[416]«Twelve New Planetary Nebulae» Edwin Hubble;Publications of the Astronomical Society of the Pacific, Volume 33, Number 193, 1921; DOI:10.1086/123070

Sky & Telescope

Webseite: skyandtelescope.org

[99]Observer's Notebook: Twin Quasar Continues to Attract Observers; S&T 3/93, p.119
[100]The First Globular Cluster of the Season by Walter Scott Hudson; S&T 5/93, p.108
[101]A City on the Moon and a Diamond in Virgo; S&Ts&T 5/93, p.109
[102]The Man with the Snake by George Lovi; S&T 6/93, p.63
[103]Rediscovering the Color of the Crab Nebula by David Malin and Jay M. Pasachoff; S&T 7/93, p.43
[104]Summer's Grandest Globular Cluster by Walter Scott Houston; S&T 7/93, p.110
[105]A Star-Hop from Andromeda by Alan M. MacRobert; S&T 12/93, p.45
[106]Resolving a Quasar's Jet; S&T 3/94, p.12
[107]Rabbit Tracks by E. C. Krupp; S&T 6/94, p.64
[108]Ring Nebula Reality; S&T 7/94, p.15
[109]A Cepheus Star-Hop by Alan M. MacRobert; S&T 9/94, p.40
[110]The Veil Nebula by Roger N. Clark; S&T 10/94, p.104
[111]A Catalog of Quasars Near and Far by Geoffrey Burbidge and Adelaide Hewitt; S&T 12/94, p.32
[112]Images: NGC 4038/39 by David Malin; S&T 12/94, p.42
[113]Anatomy of a Crab by Wayne J. Parker; S&T 1/95, p.38
[114]Anatomy of a Cat's Eye; S&T 4/95, p.12
[115]Hubble Telescope Probes Shocks in Cygnus; S&T 5/95, p.11
[116]Young Star Clusters Found by HST in the 'Antennae'; S&T 6/95, p.12
[117]Andromeda's Brightest Globular Cluster by Leos Ondra; S&T 11/95, p.68
[118]X-raying the Crab; S&T 2/96, p.15
[119]Hubble Highlights the Helix Nebula's Knots; S&T 6/96, p.13
[120]Fingering the Crab; S&T 6/96, p.16
[121]Ripples in the Crab Nebula; S&T 8/96, p.10
[122]Our Neighbor's Brightest Globular; S&T 8/96, p.15
[123]M33's Puzzling Globulars; S&T 10/96, p.14
[207]Editor's choice: Abell 79 by Hal Heaton, June 12, 2018; skyandtelescope.org/online-gallery/abell-79 (2021-05-11)
[218]Images: NGC 604 by Hui Yang; S&T 11/96, p.20


[128]The Earth Centered Universe (ECU) von David J. Lane; Nova Astronomics; fox.nstn.ca/~ecu/edu.html
[129]TheSky for Windows, Version 2.11, Level IV; Software Bisque; 912 Twelfth Street; Suite A; Golden, Colorado 80401, USA; bisque.com/thesky
[130]Guide; Project Pluto, 168 Ridge Road, Bowdoinham ME 04008, USA; projectpluto.com
[131]XEphem Elwood Charles Downey; iraf.noao.edu/~ecdowney/xephem.html
[149]SkySafari 6 Pro, Simulation Curriculum; skysafariastronomy.com
[227]CDS Aladin Desktop; aladin.u-strasbg.fr/aladin.gml
[265]PP3 - Celestial Chart Generation, Torsten Bronger; pp3.sourceforge.net (2021-02-11)

Space Telescope Science Institute (STScI)

Webseite: stsci.edu

[160]The STScI Digitized Sky Survey; archive.stsci.edu/cgi-bin/dss_form
[161]Hubble Spies Globular Cluster in Neighbouring Galaxy; Press Release No. STScI-PRC96-11; oposite.stsci.edu/pubinfo/pr/96/11/A.html
[162]Planetary Nebula NGC 6543; Press Release No. STScI-PRC95-01; oposite.stsci.edu/pubinfo/pr/95/01.html
[168]Hubble peers into the Heart of the densest known Star Cluster; Press Release No. STScI-PRD95-06; oposite.stsci.edu/pubinfo/pr/95/06.html
[169]Cygnus Loop; Press Release No. STScI-PRC95-11; oposite.stsci.edu/pubinfo/pr/95/11.html
[170]Crab Nebula -- The Movie; Press Release No. STScI-PRC96-22; oposite.stsci.edu/pubinfo/pr/96/22.html
[171]Giant 'Twisters' and Star Wisps in the Lagoon Nebula; Press Release No. STScI-PR96-38; oposite.stsci.edu/pubinfo/pr/96/38.html
[172]Giant Starbirth Region In Neighboring Galaxy; Press Release No. STScI-PR96-27; oposite.stsci.edu/pubinfo/pr/96/27.html
[173]Gallery of Planetary Nebula Images; oposite.stsci.edu/pubinfo/pr/97/pn
[174]Embryonic Stars Emerge from Interstellar 'EGGs'; Press Release No. STScI-PR95-44; oposite.stsci.edu/pubinfo/pr/95/44.html
[175]Hubble Space Telescope Finds Stellar Graveyard; Press Release No. STScI-PR95-32; oposite.stsci.edu/pubinfo/pr/95/32.html
[176]Looking Down a Barrel of Gas at a Doomed Star; Press Release No. STScI-PR99-01; oposite.stsci.edu/pubinfo/pr/1999/01
[177]Hubble Legacy Archive; hla.stsci.edu (2021-01-02)

Sterne und Weltraum

Webseite: mpia-hd.mpg.de/suw/suw

[124]Quasar 3C 273 im Achtzöller von Michael Grosse; SuW 4/88, S.246
[125]Aktuelle Hinweise für den Beobachter; SuW 8-9/94, S.635
[126]Deep-Sky-Objekte des Monats: visuell beobachtet: NGC 6888 von Ronald C. Stoyan; SuW 7/96, S.555
[127]Bewegung im Krebsnebel; SuW 8-9/96, S.611


Webseite: wikipedia.org

[258]Arecibo message; en.wikipedia.org/wiki/Arecibo_message (2021-02-03)
[268]Theta1 Orionis A; en.wikipedia.org/wiki/Theta1_Orionis_A (2021-02-14)
[269]Theta1 Orionis B; en.wikipedia.org/wiki/Theta1_Orionis_B (2021-02-14)
[270]Theta1 Orionis C; en.wikipedia.org/wiki/Theta1_Orionis_C (2021-02-14)
[271]Theta1 Orionis D; en.wikipedia.org/wiki/Theta1_Orionis_D (2021-02-14)
[299]Sh2-155; en.wikipedia.org/wiki/Sh2-155 (2021-03-25)
[363]Wikipedia (deutsch): IC 2120; de.wikipedia.org/wiki/IC_2120 (2021-05-26)
[364]Wikipedia (français): IC 2120; fr.wikipedia.org/wiki/IC_2120 (2021-05-26)

WWW und andere Quellen

[132]SEDS: The Interactive NGC Catalog Online; spider.seds.org/ngc/ngc.html
[133]Deepsky Atlas of the Hawaiian Astronomical Society; hawastsoc.org/deepsky
[134]Lyon-Meudon Extragalactic Database (LEDA); leda.univ-lyon1.fr
[135]Europas Uhr geht sechs Jahre nach von Barbara S. Eisenbeiss; MUSEION 2000, Glaube, Wissen, Kunst in Geschichte und Gegenwart; 6/94, S. 32
[136]Nord- und Südhimmel: Bootes, Star Observer 5/94, S.43
[137]Flags of the World (FOTW) Web Site; fotw.digibel.be/flags
[138]WEBDA, Sternwarte Genf; obswww.unige.ch/webda
[139]Der Hippokratische Eid, deutsche Übersetzung und medizinhistorischer Kommentar, Prof. Dr. med Axel W. Bauer; uni-heidelberg.de/institute/fak5/igm/g47/bauerhip.htm
[148]CATALOG OF PARAMETERS FOR MILKY WAY GLOBULAR CLUSTERS: Compiled by William E. Harris, McMaster University, revision: December 2010; physwww.mcmaster.ca/~harris/mwgc.dat (2021-01-03)
[150]IAU: The Constellations, 11. Oktober 2020; iau.org/public/themes/constellations
[154]Yale Bright Star Catalog, 15. Oktober 2020; tdc-www.harvard.edu/catalogs/bsc5.html
[155]PNG Egg; pngegg.com
[156]Photographs from the Anglo-Australian Observatory; aao.gov.au/images.html
[163]Hubble's Hidden Treasuer - Image Processing; flickr.com/groups/hubblehiddentreasures_advanced/pool (2021-01-02)
[164]HST NGC 6309 by Judy Schmidt; flickr.com/photos/54209675@N00/10039678053 (2021-01-02)
[165]Flickr: Judy Schmidt; flickr.com/people/geckzilla (2021-01-02)
[166]Atlas of Compact Groups of Galaxies (Special Issue); Hickson, P.; Astrophysical Letters and Communications, Vol. 29, p. 1; 1993ApL&C..29....1H; articles.adsabs.harvard.edu//full/1993ApL%26C..29....1H/0000001.000.html (2020-12-29)
[192]Deep-Sky Guide; fernrohr.ch/1d_deep-sky-guide.html (2020-12-25)
[193]Beispiel Impressum für die Schweiz; 2sicgeeks.wordpress.com/2012/03/27/beispiel-impressum-fur-die-schweiz (2020-12-25)
[196]Celestial Atlas by Curtney Seligman; cseligman.com/text/atlas.htm (2020-12-28)
[199]Atlas Of Peculiar Galaxies, Halton Arp; ned.ipac.caltech.edu/level5/Arp/Arp_contents.html (2020-12-28)
[202]«The Horsehead nebula, a template source for interstellar physics and chemistry» Maryvonne Gerin (LERMA), Jérôme Pety (IRAM), Javier R. Goicoechea; arXiv:0905.3625
[204]Wolfram Alpha; wolframalpha.com (2020-12-29)
[206]Gamma Casiopeia, 1890. Roberts, Isaac; ssplprints.com/image/106813/roberts-isaac-gamma-casiopeia-1890 (2021-05-18)
[212]«Fossils of the distant Galaxy: NGC 5466 and its stellar stream» Jaclyn Jensen, University of Victoria, 2020; dspace.library.uvic.ca/handle/1828/12440 (2021-05-19)
[217]The Messier Catalog (SEDS); messier.seds.org (2021-01-01)
[219]«Photometry of open cluster NGC 1931»; Pandey, A. K.; Mahra, H. S.; Astrophysics and Space Science, Volume 120, Issue 1, pp.107-113; Pub Date: March 1986;; DOI:10.1007/BF00653902
[235]Astronomers Measure Mass of Supermassive Black Hole in NGC 1097; sci-news.com/astronomy/science-supermassive-black-hole-ngc1097-02928.html (2021-01-20)
[238]«A dwarf galaxy's transformation and a massive galaxy's edge: autopsy of kill and killer in NGC 1097» N. C. Amorisco, D. Martinez-Delgado, J. Schedler; arXiv:1504.03697
[248]Crab Nebula (one decade time-lapse movie) by Detlef Hartmann; vimeo.com/253674871 (2021-01-24)
[252]EZgif; ezgif.com
[260]«A census of young stellar population associated with the Herbig Be star HD 200775» Piyali Saha, Maheswar G., Kamath U. S., Lee C. W, Manoj P., Blesson Mathew, Ekta Sharma; arXiv:2005.00519
[263]«Two distinct sequences of blue straggler stars in the globular cluster M30» F. R. Ferraro, G. Beccari, E. Dalessandro, B. Lanzoni, A. Sills, R. T. Rood, F. Fusi Pecci, A. I. Karakas, P. Miocchi, S. Bovinelli; Published on the 24th December 2009 issue of Nature; arXiv:1001.1096; DOI:10.1038/nature08607
[266]«The Pleiades: the celestial herd of ancient timekeepers» Amelia Sparavigna; arXiv:0810.1592
[267]The Webb Deep-Sky Society; webbdeepsky.com (2021-02-13)
[274]NGC 6822 von Wolfgang Steinicke; klima-luft.de/steinicke/Artikel/NGC6822.pdf (2021-02-17)
[277]«Historische Deep-Sky Kataloge» von Dr. Wolfgang Steinicke; klima-luft.de/steinicke (2021-02-17)
[281]«Catalogue Nébuleuses et des Amas D'Étoiles» Observées à Paris, par M. Messier, à l'Observatoire de la Marine, hôtel de Clugni, rue des Mathurins. «Connoissance des temps ou connoissance des mouvements célestes, pour l'année bissextile 1784 » Page 227; gallica.bnf.fr/ark:/12148/bpt6k6514280n/f235 (2021-02-21)
[287]Press Release (April 10, 2019): Astronomers Capture First Image of a Black Hole; eventhorizontelescope.org/press-release-april-10-2019-astronomers-capture-first-image-black-hole (2021-03-01)
[288]«Galactic Radiation at Radio Frequencies. II. The Discrete Sources» Stanley, G. J. & Slee, O. B.; Australian Journal of Scientific Research A Physical Sciences, vol. 3, p. 234; 1950AuSRA...3..234S; DOI:10.1071/PH500234
[296]NGC 40: Astronomers Find New Evidence for the Violent Demise of Sun-Like Stars; chandra.harvard.edu/photo/2005/n40 (2021-03-21)
[303]List of Supernovae; cbat.eps.harvard.edu/lists/Supernovae.html (2021-04-08)
[304]All active supernova over mag 17.0; rochesterastronomy.org/supernova.html (2021-04-08)
[312]«Variable stars in young open star cluster NGC 7380» Sneh Lata, A. K. Pandey, Neelam Panwar, W. P. Chen, M. R. Samal, J. C. Pandey; arXiv:1511.08892
[318]«The electron temperatures of HII regions S 201, S 206 and S 209: multi-frequency GMRT observations.» Omar, A.; Chengalur, J. N.; Roshi, D. A.; arXiv:astro-ph/0205061
[325]Planetary nebula Jones-Emberson 1; britastro.org/node/7191 (2021-05-04)
[336]«NGC 1333: A Nearby Burst of Star Formation» Josh Walawender, J. Bally, J. D. Francesco, J. Jørgensen, January 2008; researchgate.net/publication/237811956_NGC_1333_A_Nearby_Burst_of_Star_Formation (2021-05-20)
[342]«Catalogue of selected compact galaxies and of post-eruptive galaxies» Zwicky, Fritz; Zwicky, Margrit A.; Guemligen, 1971; Bibcode: 1971cscg.book.....Z; ui.adsabs.harvard.edu/abs/1971cscg.book.....Z/abstract (2021-05-12)
[382]«Photometric Study of Open Clusters NGC 2266 and NGC 7762» Maciejewski, G. ; Boeva, S. ; Georgiev, Ts. search by orcid ; Mihov, B. ; Ovcharov, E. ; Valcheva, A. ; Niedzielski, A.; Baltic Astronomy, Vol. 17, p. 51-65, 2008; ui.adsabs.harvard.edu/abs/2008BaltA..17...51M (2021-06-05)
[383]«The Hyades age anticenter cluster NGC 2266» Kaluzny, Janusz ; Mazur, Beata; Acta Astron., Vol. 41, p. 191-212 (1991); ui.adsabs.harvard.edu/abs/1991AcA....41..191K (2021-06-05)
[390]«New Planetary and Peculiar Gaseous Nebulae» Vorontsov-Vel'Yaminov, B. A.; Soviet Astronomy, Vol. 5, p.278, October 1961; ui.adsabs.harvard.edu/abs/1961SvA.....5..278V (2021-06-13)
[391]«Morphological study of planetary nebulae. I. Observed forms of planetary nebulae.» Kromov, G. S.; Kohoutek, L.; Bulletin of the Astronomical Institutes of Czechoslovakia, Vol. 19, p. 1-11 (1968); ui.adsabs.harvard.edu/abs/1968BAICz..19....1K (2021-06-13)
[393]«New and misclassified planetary nebulae.» IAU Symp. 76, held at Cornell University, Ithaca, New York, USA, june 6-10, 1977. Planetary nebulae. Observations and theory. Ed by Y. Terzian., 47-62 (1978); ui.adsabs.harvard.edu/abs/1978IAUS...76...47K (2021-06-13)
[396]«William Lassell's (1799-1880) telescopes and the discovery of Triton» Pedro Ré; astrosurf.com/re/william_lassell_telescopes.pdf (2021-06-25)
[402]«Second list of diffuse nebulae» Gaze, V. F. ; Shajn, G. A.; Izv. Krym. Astrofiz. Obs., Vol. 7, p. 93-98 (1951); ui.adsabs.harvard.edu/abs/1951IzKry...7...93G (2021-07-04)
[404]«The nature of the nebulae A21 (YM 29) and Simeiz 22» Arkhipova, V. P. ; Lozinskaya, T. A.; Soviet Astronomy Letters, vol. 4, Jan.-Feb. 1978, p. 7-10; ui.adsabs.harvard.edu/abs/1978SvAL....4....7A (2021-07-04)
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