Constellation Orion (Hunter)

Orion
Orion: IAU Constellation Map [150]

Properties

The constellation Orion is without a doubt the brightest and perhaps the most famous in the sky. It can be seen in the sky especially in winter. To the northeast is the constellation Gemini, to the northwest Taurus, to the southwest Eridanus, south Lepus and east Monoceros.

Orion
Orion: Molecular cloud in Hα light (section of VTSS) [147]

By far the most striking feature are the three bright belt stars Alnitak, Alnilam and Mintaka, which lie in a row. But the two shoulder stars Betelgeuse and Bellatrix, as well as the foot stars Saiph and Rigel are not to be despised. Together with the belt stars they form two striking trapezoids. North of the two trapezoids is a small triangle made up of three stars, which represents the head of Orion. A row of weaker stars and the Orion Nebula, which is clearly visible to the naked eye, form the sword of Orion in the southern trapezoid. The constellation therefore reflects the ideal warrior: a large body with a small head. Orion covers an area of 594 square degrees in the firmament and culminates around midnight on December 13th. [9, 15]

Orion is the spectacle of a star formation area with the Orion Nebula, about 1350 light years away, as the central, brightest part of the Orion molecular cloud complex, which extends over the entire constellation spreads out and composed of luminous, reflective as well as dark clouds.

Stars with Proper Names:

  • α Ori: Betelgeuse, Betelguex, Betelgeuze, Beteiguex, Al Mankib
  • β Ori: Rigel, Algebar, Elgebar
  • γ Ori: Bellatrix, The Amazon Star
  • δ Ori: Mintaka, Mintika
  • ε Ori: Alnilam, Alnihan, Alnitam
  • ζ Ori: Alnitak, Alnitah
  • ι Ori: Nair Al Saif, Hatysa
  • κ Ori: Saiph
  • λ Ori: Meissa, Heka
  • υ Ori: Thabit, Tabit
Data for constellation Orion [150]
IAU NameOrion
IAU GenitiveOrionis
IAU Abbr.Ori
English NameHunter
Season (47° N)September … March
Right Ascension04h 43m 25s … 06h 25m 47s
Declination-10° 58' 43" … +22° 52' 35"
Area594 deg2
Neighbours (N↻)Gem, Tau, Eri, Lep, Mon

Deep-Sky Object Descriptions

Mythology and History

Orion is a legendary figure from the most ancient times. He was seen as a role model for a great hunter who won the love of goddesses because of his beauty, but who also persecuted women himself and stalked them without ever reaching them. Orion was the son of Zeus, one third of Poseidon and one third of Hermes. He is also called the «earth-born». But first the story of its origin:

Zeus, the king of the gods, and Poseidon, the god of the seas, and Hermes, the messenger of the gods, went on their way together one evening and passed the little hut of old Hyreius. This was a poor man and had little land to cultivate. He stood in front of his hut and invited them to spend the night. He did not yet recognize the divinity of the three, because they hid them from him.

Setting Orion
Setting Orion: Probably the most conspicuous constellation on the winter sky. Left of it the brigt star Sirius; Nikon D3, Nikkor AF-S 17-35mm 1:2.8D; 30s, ISO 3200; Glaubenberg; © 5. 2. 2011 Bernd Nies

The three gods entered the old man's house, which was blackened with dark smoke. Little embers glowed on the hearth. Hyreius knelt, made a new fire, and brought two pots of beans and cabbage to a boil. With a shaky hand, he offered his guests red wine. Poseiden was the first to receive the cup, emptied it and said: «Let Zeus drink next.» The old man turned pale when he heard the name, but he composed himself. Then he slaughtered his only bull, which he needed to plow his barren field, and roasted it over a mighty fire. He took out another wine, which he kept in a smoke-blackened jug and which he had once bottled when he was young. The three gods sat down without hesitation on the low deposit, which consisted only of river reeds covered with a linen cloth.

The table soon glowed with the meat and wine that was served. The mixing jug was a red earthen vessel, the cups were made of beech wood. Zeus was touched by the sacrifice of old Hyreius and said: «If you ask for something, wish it! You will receive everything.» The peaceful old man told of his beloved, recently deceased wife and his dearest wish to become a father.

Zeus, Poseidon and Hermes agreed and they all stepped on the peeled, fresh skin of the bull. They emptied their bladder on it and then covered the damp skin by throwing earth on it. It took ten months for it to become a child. Hyreius called it Urion because it was so conceived. The boy grew up very quickly and became handsome and strong. Over time, however, the first letter of his name lost its old sound and from then on it was called Orion. [20]

Orion once hunted a wild beast in the kingdom of Chios, the ruler of which had a beautiful daughter. Orion asked if he could marry her, but the king did not want such a fearsome son-in-law. He tricked Orion by first making him drunk and then blind. Orion, deprived of his eyesight, followed the sound of the hammering hammer of the blacksmith god Hephaestus. The farrier gave the hunter his assistant, a limping cyclops named Cedalion. Orion carried Cedalion on his shoulders, and Cedalion lent Orion his powerful eyesight. He finally helped him to find a country in the "east of the east". There the rising sun healed Orion's eyes. [65]

Constellation Orion
Constellation Orion: Illustration from «Uranometria» by Johann Bayer, copper engraving by Alexander Mair, 1603 [28]

In its beauty and mightiness, Orion even knew how to captivate goddesses. Delia chose him as a companion, he was the goddess' protector and her follower. According to Homer's report, there was the goddess of the dawn, Eos (Latin Aurora), who, in her constant infatuation, knew how to win Orion. But the daughters of Atlas, the bearer of the heavens, were also connected to him. They were the Pleiades whom Orion loved but never reached. To this day he hurries through the sky night after night without ever catching up with her. Even the virgin goddess of the hunt, Artemis (also moon goddess) was blinded by Orion and finally killed him with arrows out of jealousy and resentment. In retrospect, you can hear another, somewhat weaker version, according to which Orion had to die because he killed too many animals - after all, the goddess of the hunt is also the protector of all wild animals. [20]

According to another version of death, the relationship between Orion and Artemis aroused the jealousy of their twin brother, the sun god Apollo. One day Apollo and Artemis were standing on a beach and he asked them to meet a dark object far away on the sea. That object was Orion's head, visible over the waves as it walked to the bottom of the ocean. Artemis' arrow killed Orion. To comfort you, Zeus granted the hunter a place under the stars. [65]

Another death version is told in which the Scorpio occurs. Hera, the jealous wife of Zeus, sent the scorpion to kill Orion. Even today, Orion is only in the sky when Scorpio has already set. [20, 65]

The Orion was known as a giant, hunter and warrior. The Roman poet Catullus transcribed the Greek name into the word Oarion. According to Ovid's story, Urion is also used, as well as the names Deanae Comes and Amasius, which allude to Orion being the companion and lover of Diana was.

In the Egyptian culture, the much-noticed constellation is close to the gods Horus and Osiris. According to Egyptian myths, Osiris was murdered, dismembered and scattered by his brother Seth, a seedy, ancient Egyptian god. Isis, Osiris' sister, was looking for the dead brother, and, as it were, picked it up and resuscitated it. She then received her son Horus from him, who later assumed the inheritance of Osiris. Osiris was judge and ruler in the realm of the dead and, as the god of vegetation, let plants sprout from the earth and flourish.

From the Jewish tradition comes an identification with Nimrod, an Old Testament figure who was seen as a great hunter. The founding of Babylonia and Assyria is said to go back to him. The image of the hunter for Orion also exists in Roman culture, he was called Venator.

Indians from central Brazil see the Orion as a large rack on which cassava is dried. Cassava is a root plant from which starch is obtained, which is the most important food. Sirius was also included in this picture. [20, 56]

Catalogs

Yale Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991) [154]
HR B F DM HD SAO FK5 IR M* ADS VarID RA Dec vMag spType dMag Sep ["] Remarks
HR 1507BD+10 6213003494095W 1705 04 44 25.8+11 08 465.40 F0V 5.874.7G:In Hyades cluster; Mel 25 #111.,VAR:Delta Sct? In Hyades instability strip.
HR 1519BD+11 64630210941112353W 04 46 01.7+11 42 205.37 A2m 7.593.8G:In Hyades cluster; Mel 25 #112.
HR 1522BD-03 88430321131481 04 46 24.1-02 57 166.33 A2V
HR 1534BD+03 68130545112098 04 48 44.6+03 35 186.03 K1III
HR 1543π31BD+06 762306521121061134IW 1731 04 49 50.4+06 57 413.19 F6V 5.594.6D:Visual companion probably optical.,N:Designated Tabit by Becvar but Allen gives Thabit as Burritt's name for an unlettered star on his atlas, the Upsilon,N:of Heis (HR 1855). The superscripts for Pi Ori adopted in the Harvard catalogues and taken over in the BS,N:correspond to the Heis atlas and Argelander's identifications of Flamsteed numbers. Very many old catalogues follow the,N:BAC. Heis superscripts 1,2,3,4 are respectively 4,2,1,3 in the BAC.,VAR:Delta Sct? Amp. 0.05V.
HR 1544π22BD+08 77730739112124I 04 50 36.7+08 54 014.36 A1Vn N:See HR 1543.,R:Radius relative to Sun = 2.0.
HR 1552π43BD+05 74530836112142179 1742 04 51 12.4+05 36 183.69 B2III+B2IV G:Ori OB1.,N:See HR 1543.,SB:9.5191d, K 25.8k/s, V0 +23.3k/s, asini 3.38.
HR 1553BD+09 66830870112150 04 51 43.4+09 58 306.11 B5V N:Formerly 1 Aur now in Perseus.
HR 1556ο14BD+14 77730959941761136I Omi1 Ori04 52 32.0+14 15 024.74 S3.5/1- G:Wolf 630 group.,S:Also classified S4Zr1Ti4 and M3.2IIIas.,VAR:SRb 4.65 - 4.88V, about 30d.
HR 15625BD+02 80031139112179I 1755 04 53 22.8+02 30 295.33 M1III
HR 1565BD+01 84731209112191 04 53 55.8+01 34 106.61 A1Vn
HR 1567π58BD+02 81031237112197180 Pi5 Ori04 54 15.1+02 26 263.72 B3III+B0V G:Ori OB1.,SB:3.700373d, K 57.9k/s, V0 +24.2k/s, asini 2.95.,VAR:Ell 3.66 - 3.73V, 3.700363d.
HR 15696BD+11 67531283941972368S 04 54 46.9+11 25 345.19 A3V
HR 1570π17BD+09 6833129594201W 04 54 53.8+10 09 034.65 A0Vp 4.2171.6G:Hyades?,N:See HR 1543.,R:Radius relative to Sun = 2.7.,S:Lambda Boo star, Ca, Mg 4481 wk.
HR 1571BD+07 755312961122032369I 1763 04 54 47.8+07 46 455.33 gK1
HR 1574BD+00 89331331112206 04 54 50.7+00 28 035.99 B5V
HR 1576BD+14 7873137394212 04 55 50.3+15 02 245.81 B9V
HR 1578BD+05 76931411112220 04 55 58.4+05 23 576.50 A0V
HR 1580ο29BD+13 7403142194218I3540 04 56 22.3+13 30 524.07 K2-IIIFe-1 7.5100.4D:Optical group.,G:Hyades?,S:Also classified K2IIIbCN-1.
HR 1591BD-01 762316231316252373 04 57 17.2-01 04 026.23 F2
HR 1596BD-02 1080317391316403570 04 58 10.8-02 12 456.35 A2V 5.521.0
HR 1600BD+14 79631764942403579 A1788 04 58 59.4+14 32 346.09 B7V 1.539.3D:AB probably optical. B, 8.0v B9; C, 9.8v at 54"; D, by Wallenquist, mag. diff 7.1 at 90".
HR 1601π610BD+01 87231767112281I 1786 04 58 32.9+01 42 514.47 K2-II
HR 1609BD+03 736320391123043597 B1800 05 00 32.6+03 36 557.03 B9Vn 0.421.3D:Fixed with HR 1610.
HR 1610BD+03 737320401123053597 A1800 05 00 33.9+03 36 586.66 B9Vn 0.421.3D:Fixed with HR 1609. Colors for combined light.
HR 1613BD-02 109532115131684 05 00 39.8-02 03 566.32 A8IV
HR 1618BD+00 923322631123342376 1806 05 01 50.3+00 43 205.92 K0
HR 1619BD+01 886322731123403623 A05 02 00.0+01 36 326.24 B8V 1.314.2D:BC binary 7.7, 10.7v sep. 0.5"; AxBC binary, B = GC 6148 A1IV?, vsini 53:k/s; D, 9.5 at 130".
HR 163811BD+15 73232549942901140 V1032 Ori05 04 34.1+15 24 154.68 A0pSi G:Member of Pleiades group.,VAR:Alpha CV, 4.65 - 4.69V, amp. 0.03y, 4.6398d.
HR 1646BD-03 998326861317422378 05 04 54.5-03 02 236.05 B5IV G:Ori OB1a assoc.
HR 1648BD+00 93932736112406I W Ori05 05 23.7+01 10 396.17 C6II VAR:SRb 8.2 - 12.4p, 212d. Mean mag. varies in period 2450d.
HR 166213BD+09 73633021112436W 05 07 38.3+09 28 196.17 G1IV 3.8124.0G:Wolf 630 group; Hyades?
HR 166414BD+08 866330541124403711 05 07 52.9+08 29 545.34 Am 0.80.7D:5.78 Am, 6.62 Am, 198.9y, a = 1.04". Mean mass 1.7 solar. Combined mag., colors. CPM with ADS 3712 = GC6270, 9.8, 8 K2,D:sep. 3" at 348".,DYN:0.021".
HR 167216BD+09 743332541124671142W 1849 05 09 19.6+09 49 465.43 A2m 4.5168.0G:Hyades cluster; Mel 25 #130.,R:Radius relative to Sun = 2.2.,S:Spectrum in violet indicates luminosity III; G-band region, V.,SB:155.83d, K 8.2k/s, V0 +42.9k/s, asini 13.0.,VAR:2.87d not confirmed.
HR 167615BD+15 7523327694359W 05 09 42.0+15 35 504.82 F2IV D:Suspected visual double probably single: unresolved by speckle interferometry.
HR 1681BD-00 86733419131834 05 10 03.2-00 33 556.10 K0III
HR 1684BD+15 75933554943772391I 05 11 41.6+16 02 445.18 K5III
HR 1685BD-02 116133555131847 05 10 58.0-02 15 146.25 K1-IVa
HR 1687BD-02 1165336081318522390 05 11 19.2-02 29 275.90 F5V
HR 1690BD+00 974336471125053767 V1085 Ori05 11 41.4+00 30 536.67 B9Vn 0.40.1D:Binary.,G:Ori OB1a assoc.,RV:Period 21.4d.,S:Hg, Mn star; late type close companion.,VAR:Amp. 0.003V, 0.565d.
HR 1691BD+00 975336461125093764 05 11 45.3+01 02 135.89 G5III 1.41.6S:Also classified A + G2:III.
HR 1697BD-06 110933833131873 05 12 48.2-06 03 265.91 G7III
HR 1698ρ17BD+02 88833856112528I3797 1872 05 13 17.5+02 51 404.46 K0.5III 3.96.9D:AB fixed. B, 8.4v, F7V at 7"; C, 11.8 at 182".,DYN:0.001".,S:Also classified K0.5III.,SB:ADS 3797A, 1031.40d, K 8.7k/s, V0 +40.5k/s, asini 123. Unresolved by speckle interferometry.
HR 1701BD+01 938338831125353799 05 13 31.6+01 58 056.09 A5V 0.20.5D:AB 6.9 A4V, 7.1 A6V, 312y, a = 0.383". Combined mag., colors. C, 13v at 7", may be physical.,S:Component B variously classified G, F6III, A6V.
HR 1703BD+00 98833946112543IW 1874 05 13 47.2+00 33 376.32 M0V
HR 1704BD-08 105933948131887 05 13 33.3-08 08 526.37 B5V
HR 1709BD+04 877340431125562394I 1880 05 14 44.1+05 09 225.50 gK4
HR 1713β19BD-08 106334085131907194I3823 1882 05 14 32.3-08 12 060.12 B8Ia: e6.59.5C:Color excess E(B-V) = +0.00.,D:AxBC, CPM. BC binary, 7.6 B8II, 7.6v sep. 0.12". D, 15.4v at 44". BC also classified B5V+B5V. For B, vsini =<39k/s.,DYN:0.004".,G:Ori OB1; in reflection nebula; member assoc. Tau-Ori R1 at 360 pc.,N:RIGEL; Algebar; Elgebar.,R:Diam. = 0.00243 - 0.00255".,S:Between wavelengths 10660 and 10915 no stellar lines except the chromospheric line He 10830. Weak magnetic field.,SB:ADS 3823B, 9.860d, K 25.0k/s, V0 +19.1, asini 3.37. May be due to pulsation.,VAR:0.03 - 0.30V, 25d. Amp. at 0.58 micrometers about 0.06m.
HR 1717BD-01 83734180131917 05 15 18.4-01 24 336.15 F0IV
HR 171818BD+11 75634203944262395 05 16 04.1+11 20 295.56 A0V
HR 1724BD+01 95734317112588 05 16 41.1+01 56 506.42 A0V eG:Field of Ori OB1a but probably not member.,S:Possible H alpha emission.
HR 1735τ20BD-07 1028345031319521953877 05 17 36.4-06 50 403.60 B5III 7.236.0
HR 174621BD+02 91634658112624 1922 05 19 11.2+02 35 455.34 F5II vG:Ori OB1.
HR 1748BD-01 85934748131983 05 19 35.2-01 24 446.34 B1.5Vn G:Ori OB1a.
HR 1759BD-05 1225348801320043926 05 20 26.4-05 22 006.39 B8III 4.74.4D:CPM.,S:Spectra show Mn.
HR 1761BD+03 85734959112660 05 21 19.3+04 00 436.57 B5Vp eG:Ori OB1a.,S:Shell star. H alpha emission. Also classified B7IIIn.
HR 1763BD+08 933349891126672401 05 21 43.6+08 25 435.80 B1V G:Ori OB1; in reflection nebula; faint HII region. Teardrop shaped nebula in blue light has no counterpart in red.
HR 1764BD-00 929350071320243941 05 21 31.8-00 24 595.68 B3V 5.937.6D:Component B optical.,G:Ori OB1a; Orion belt.
HR 176522BD-00 930350391320281147 05 21 45.7-00 22 574.73 B2IV-V G:Ori OB1a; Orion belt.,SB:293.0d, K 4.1k/s, V0 +27.9k/s, asini 16.33.
HR 177023BD+03 871351491126973962 A05 22 50.0+03 32 405.00 B1V 2.231.9D:Fixed. Secondary 7.17V, -0.12(B-V), -0.63(U-B), B5Vn, B8nnp or B3V, RV -58k/s, vsini 350k/s, optical.,G:Ori OB1a.,RV:Rapidly rotating; may become Be star.
HR 1777BD+05 90535242112708 05 23 31.1+05 19 216.35 A2V G:Ori OB1.
HR 1778BD-08 1107352811320533978 05 23 18.5-08 24 575.90 B8III 1.76.0D:Companion A5IV, vsini 124k/s.
HR 1781BD-00 93635299132057 05 23 42.3-00 09 355.70 B1.5V G:Ori OB1a; Orion belt.
HR 1782BD-01 882353171320603991 05 23 51.4-00 52 026.11 F7V 0.02.7D:BC 7.8 F8V, 7.9 F8V, 48.0y, a = 0.34". AxBC physical.,G:Ori OB1.
HR 178429BD-07 106435369132067I 05 23 56.8-07 48 294.14 G8IIIFe-0.5
HR 1786BD+02 94735407112729 05 24 36.2+02 21 106.32 B4IVn G:Ori OB1a.,S:Shell star.
HR 178727BD-01 88635410132070I 05 24 28.9-00 53 295.08 G9III-IVFe-1
HR 1788η28BD-02 1235354111320714002 Eta Ori05 24 28.6-02 23 493.36 B1V+B2e 1.41.5D:ADS 4002A is SB triple system, abc with periods 9.2y and 7.989d. Speckle interferometry gives 9.219y, a = 0.036" for,D:for ab x c. Visual components AB, binary, 3.8, 4.8v, sep. 1.650"; C, 9.4v at 115". The total mass of the quintuple,D:system exceeds 50 solar masses, the most massive component being about 17 solar masses.,DYN:0.005".,G:Ori OB1a; Orion belt; cluster CR 70.,RV:Expanding circumstellar shell.,SB:ab, 7.9841d, K 145.2k/s, V0 +35.9k/s, asini 15.9. abc, 9.2y, K 17.5k/s, V0 +19.5k/s, asini 805. Resolved by,SB:speckle interferometry at 4-meter Mayall telescope, sep. 0.04"; vsini secondary 39k/s.,VAR:EA + Beta C 3.31 - 3.60V, 3.14 - 3.35B, 7.989268d. Also sinusoidal pulsation period, amp. 0.05V, 0.30197 or 0.30145d.
HR 1789ψ125BD+01 1005354391127342406 V1086 Ori05 24 44.8+01 50 474.95 B1Vpe G:Ori OB1a.,RV:Period 3-5y? Expanding circumstellar shell.,S:Shell star. Also classified B3ne, BeIII-IV.,VAR:Gamma Cas?, 4.92 - 4.96V, 14.50d? Amp. 0.07R, 0.06(R-I).
HR 1790γ24BD+06 91935468112740201IW 1972 05 25 07.9+06 20 591.64 B2III 10.5179.0G:Ori OB1.,N:BELLATRIX; the Amazon Star.,R:Diam. = 0.00070 - 0.00072".,RV:Expanding circumstellar shell. AEROBEE evidence for mass ejection up to 1600k/s.
HR 1799BD-10 117835536150420I 05 25 01.6-10 19 455.61 K5III
HR 1800BD-00 945355481320864020 05 25 31.2-00 32 396.57 B9pHgSi 0.60.2D:359.1y, e 0.19, a 0.28", i 50.9d, mag. diff 0.3.,G:Ori OB1a; Orion belt.,S:Manganese star. Spectra also show Hg.
HR 1803BD+00 105635588112752 1975 05 25 47.0+00 31 156.16 B2.5V G:Ori OB1a.,SB:2.8884d, K 71.2k/s, V0 +16.8k/s, asini 2.81.
HR 1806BD-05 124735640132100 05 26 02.4-05 31 066.23 B9.5Vn G:Ori OB1; sword of Orion.
HR 1807BD+06 92335656112767 05 26 38.8+06 52 096.42 A0Vn
HR 1809BD+15 8223569394556 05 27 13.8+15 15 286.16 A1IV
HR 1811ψ230BD+02 962357151127754039 Psi Ori05 26 50.2+03 05 444.59 B2IV 5.62.7D:AB about 6300y. B, 10.3V, vsini 96k/s. C, 12.3v at 83", optical.,G:Ori OB1a.,SB:ADS 4039A, 2.5260d, K 142.8k/s, V0 +15.8k/s, msin3i 8.74, asini 4.95. Apsidal per. 44.8y.,VAR:Ell 4.55 - 4.61V, 4.31 - 4.34B, 2.52596d.
HR 1819BD+13 9033590994580 05 28 34.8+13 40 446.35 A4V
HR 1820BD+01 102135912112794 05 28 01.6+01 17 546.41 B2V G:Ori OB1a.
HR 1826BD-03 1115360581321574078 05 28 56.7-03 18 276.39 A0Vn 0.30.8G:Ori OB1c; Orion belt.
HR 1830BD-03 111636134132170 2022 05 29 23.6-03 26 475.79 K1-III
HR 1832BD+15 8373616294596 05 30 26.1+15 21 375.94 A3Vn
HR 1833BD+01 103236166112830 05 29 54.8+01 47 215.78 B2V G:Ori OB1a; Orion belt star.
HR 183431BD-01 91336167132176I4097 CI Ori05 29 44.0-01 05 324.71 K5III 5.412.5D:CPM. Companion 9.70V, +0.71(B-V), +0.15(U-B), F7V.,VAR:ADS 4097, cst? 4.67: -4.71V.
HR 1837BD+04 94936217112837 CK Ori05 30 19.8+04 12 156.21 K2IIIe vVAR:SR? 5.9 - 7.1v, 120?d.
HR 183932BD+05 939362671128494115 05 30 47.1+05 56 534.20 B5V 1.30.9D:4.49 B5IV, 5.82 B7V, 586y, a = 1.293". Combined mag. and colors.,DYN:0.008".,G:Cas-Tau OB1; member of Pleiades group. Field of Ori OB1a but probably not member.
HR 1840BD-07 109936285132192 05 30 20.7-07 26 056.33 B2IV-V G:Ori OB1c; sword of Orion.
HR 184233BD+03 948363511128614123 05 31 14.5+03 17 325.46 B1IV+B1.5V 1.01.9D:AB fixed. Combined mag., colors.,G:Ori OB1a.
HR 1848BD-06 120736430132210 05 31 20.9-06 42 306.22 B2V G:Ori OB1c; sword of Orion.
HR 1851δ34BD-00 982364851322214134 C05 32 00.5-00 17 046.85 B2V 4.651.7C:IR source.,D:Binary with HR 1852, q.v.,G:Ori OB1b3; Orion belt.
HR 1852δ34BD-00 98336486132220206I4134 ADel Ori05 32 00.4-00 17 572.23 O9.5II 4.651.7C:Color excess E(B-V) = +0.07.,D:Binary with C = HR 1851. Component B, 14.0v at 33".,G:Ori OB1b3; Orion belt; cluster CR 70.,N:MINTAKA; Mintika.,RV:Mass ejection at up to 1800k/s.,S:Nitrogen deficient. Interstellar Lyman alpha absorption observed by AEROBEE rocket. Also classified B2V, O9.5II,,S:O9.5II-III + B0III.,SB:ADS 4134A, 5.7324d, K 101.0k/s, V0 +20.1k/s, asini 7.92. The first SB in which stationary lines were observed.,VAR:ADS 4134A, EA 2.14 - 2.26V, 1.94 - 2.13B, 5.732476d. Intrinsic variability also possible.
HR 1855υ36BD-07 110636512132222 05 31 55.8-07 18 054.62 B0V G:Ori OB1c; sword of Orion.,N:Thabit; Tabit. See HR 1543.,RV:Expanding circumstellar shell.
HR 1861BD-01 935365911322344141 2107 05 32 41.3-01 35 315.35 B1IV 4.52.0D:CPM.,G:Ori OB1b2; Orion belt; HII region.,VAR:Amp. 0.10y.
HR 1863BD-01 939366461322474150 2131 05 33 07.2-01 43 066.46 B4Vn 1.81.5D:All components CPM? CD binary, 8.9v A0V, 9.7v sep. 0.8" at 30" from A, physical.,G:Ori OB1b2; Orion belt.
HR 186435BD+14 94736653946522414 05 33 54.3+14 18 205.64 B3V
HR 1868BD-01 94336695132255 VV Ori05 33 31.4-01 09 225.34 B1V G:Ori OB1b2; Orion belt.,SB:AB, 1.4854d, K 128.6k/s, V0 +22.1k/s, msin3i 7.56, asini 2.63; ABC, 119.088d, K 13.5k/s, V0 +3.3k/s, asini,SB:21.2. Spectra (A)B1V, (B)B5-B9V, (C)A7V. Masses 7.6, 3.42, 1.5 solar, respectively.,VAR:EA 5.31 - 5.66V, 5.14 - 5.51p, B1V + B7V, 1.4853784d, i 80.9d. A third component has orbital period 119.09d.
HR 1871BD+01 105836741112901 05 33 57.6+01 24 286.59 B2V G:Ori OB1a; Orion belt star.
HR 187238BD+03 96436777112904W 05 34 16.7+03 46 015.36 A2V 0.4D:Suspected visual double probably single. Unresolved by speckle interferometry.,G:UMa stream; Ori OB1.
HR 1873BD-01 949367791322694159 05 34 03.9-01 02 086.22 B2.5V 4.827.5C:Abnormal reddening at 1500A.,D:Companion has K-type spectrum.,G:Ori OB1b2; Orion belt.
HR 1874BD-01 95036780132270I 05 34 04.0-01 28 145.93 K5III
HR 1876φ137BD+09 87736822112914208S 05 34 49.2+09 29 224.41 B0III G:Ori OB1; exciting star of HII region S264; Lambda Ori assoc.,SB:8.4y, K 13.3k/s, V0 +33.2k/s, asini 547. Unresolved by speckle interferometry.
HR 1879λ39BD+09 87936861112921I4179 A2240 05 35 08.3+09 56 033.54 O8III((f)) 2.04.4C:Color excess E(B-V) = +0.12.,D:A,B,C fixed. B is HR 1880. Colors for combined light. Blended mag., 3.39V. C is 11.2v at 29", optical; D, 11.2,D:at 78".,DYN:0.001".,G:In cluster Collinder 69; exciting star of HII region S264; in Lambda Ori assoc. Lambda Ori and surroundings are at,G:same distance as Ori OB1 assoc. but are not members. Lambda Ori member surrounded by expanding HII region.,N:Meissa; Heka.,VAR:Uncertain which of HR 1879 or 1880 is the variable suspect.
HR 1880λ39BD+09 8793686204179 B2240 05 35 08.5+09 56 065.61 B0.5V 2.04.4D:See HR 1879.,DYN:0.001".,G:See HR 1879.
HR 1883BD+10 81836881946714181 2251 05 35 13.4+10 14 245.60 B9IIIpHg:Mn: 4.22.9D:CPM.,G:In HII region; Lambda Ori assoc.
HR 1886BD-06 1233369591322984182 B2261 05 35 00.9-06 00 335.67 B1V v0.936.2D:Fixed with HR 1887.,G:Iota Ori cluster; Ori OB1c4; sword of Orion.
HR 1887BD-06 1234369601323014182 A05 35 02.7-06 00 074.78 B0.5V 0.936.2D:Fixed with HR 1886.,G:Iota Ori cluster; Ori OB1c4; sword of Orion.
HR 1890BD-04 118337017132317 V1046 Ori05 35 21.8-04 29 366.56 B1.5V G:Ori OB1c1; Orion northern sword.,S:He strong.,SB:18.65d, K 30k/s, V0 +32k/s, asini 7.34. The 18.65 or 9.3d periods may be spurious, with 0.9015d as the true period.,SB:Rotation vsini 150k/s.,VAR:E:+SX Ari 6.54 - 6.58V, 0.94629d superimposed on SX Ari type, 0.9015d.
HR 1891BD-04 118437016132319W 05 35 22.5-04 25 316.24 B2.5V 0.70.2G:Ori OB1c1; Orion northern sword.
HR 189242BD-04 118537018132320I4187 2318 05 35 23.2-04 50 184.59 B1V 3.21.5C:Color excess E(B-V) = +0.05.,D:Binary. COPERNICUS spectra and IR photometry yielded no evidence on the companion.,DYN:0.009".,G:In HII region; Ori OB1c2; sword of Orion. No emission from the nebula.
HR 1893θ141BD-05 13153702004186 AV1016 Ori05 35 15.9-05 23 146.73 B0.5V 0.1117.0C:Abnormal reddening at 1500A. IR source.,D:ADS 4186AC fixed at 13". C = HR 1895. ADS 4186 and 4188 together appear to form one complex multiple system whose,D:brightest components are ADS 4186C = HR 1895 and ADS 4188A = HR 1897. These two components are double star STF 17 which,D:IDS lists as part of ADS 4188. Thus, the 9 components of ADS 4186 and the 4 of ADS 4188 form one system of at least 12,D:components. Those of ADS 4186 range from mag. 5.4 to 16.7v, all within 22" of A. ADS 4188 has two other,D:companions in addition to HR 1895: B, 6.5v at 53" and C, 7.6v at 129" from HR 1897.,G:Ori OB1d; sword of Orion; a trapezium star.,S:Also classified B0.5Vp.,SB:65.43233d, K 33.3k/s, V0 +13.3k/s.,VAR:ADS 4186A, EA, 6.72 - 6.75V, 65.43233d. Component E is NSV 2291, amp. 0.41V; component F is NSV 2296, 11.0V; component,VAR:H is NSV 2292, 15.6V.
HR 1894θ141BD-05 13153702104186 BBM Ori05 35 16.1-05 23 077.96 B0V 0.1117.0C:Abnormal reddening at 1500A.,D:Fixed with HR 1895 at 17". See HR 1893.,G:Ori OB1d; sword of Orion; a trapezium star.,S:Also classified B1-3V+A7IV.,SB:6.4705d, K1 52.8k/s, K2 171k/s, V1 +20.7k/s, V2 +23.6k/s, m1sin3i 5.75, m2sin3i 1.78,,SB:a1sini 4.70, a2sini 15.2.,VAR:ADS 4186B, EA 7.95 - 8.52V, 6.470525d, i 87.7d.
HR 1895θ141BD-05 131537022132314I4186 C2294 05 35 16.5-05 23 235.13 O6p v0.1117.0C:Abnormal reddening at 1500A. Color excess E(B-V) = +0.32. Morel and Magenat indicate R-I from -0.13 to 0.00 in,C:disagreement with other Johnson sources.,D:See HR 1893. Fixed with HR 1896 at 13".,G:Ori OB1d; sword of Orion; a trapezium star. Orion Neb, NGC 1976, HII reg.,M:No clear evidence for being X-ray source. Temp. 32000d excites nebulosity to 10600d.,S:Interstellar Lyman alpha absorption observed by AEROBEE rocket. Also classified O6ep, O7Vp, O6.5III.,SB:Inverse P Cyg profile suggests infalling material rather than SB.,VAR:5.10 - 5.16V. He II 4686 suggests var. density of infalling material on time scale of days.
HR 1896θ141BD-05 13153702304186 D2295 05 35 17.3-05 23 166.70 B0.5Vp 0.1117.0C:Abnormal reddening at 1500A.,D:See HR 1893, 1895.,G:Ori OB1d; sword of Orion; a trapezium star.,VAR:6.65 - 6.72V.
HR 1897θ243BD-05 131937041132321I4188 A2320 05 35 22.9-05 24 585.08 O9.5Vp e0.1117.0C:Abnormal reddening at 1500A.,D:ADS 4188AB fixed at 52". B is 6.38V, -0.05(B-V), -0.93(U-B), B0.5V; vsini 17k/s. See HR 1893.,G:Ori OB1d; sword of Orion; M42; HII region.,M:May be X-ray source 3U0527-05.,S:Emission is nebular, to red of H beta.,SB:ADS 4188A, 20.96722d, K 90.5k/s, V0 +32.1k/s, asini 25.6. Primary 20 solar masses, secondary over 14 solar.,SB:Possibly the counterpart of X-ray binary 3U0527-05 with perhaps collapsed components.,VAR:5.05 - 5.19V. Component B is NSV 2326, 6.38 - 6.44V.
HR 1898BD-04 1186370401323254192 05 35 31.1-04 21 536.38 B2.5IV 2.04.2D:CPM.,G:Ori OB1c1; Orion northern sword.
HR 1899ι44BD-06 124137043132323209I4193 2334 05 35 26.0-05 54 362.77 O9III e4.511.4C:Color excess E(B-V) = +0.07.,D:AB fixed. B is B7IV; vsini 50k/s.,DYN:0.005".,G:Iota Ori cluster; Ori OB1c4; sword of Orion; HII region.,N:Nair al Saif; Hatysa in Becvar.,RV:ADS 4193A, mass ejection vel. up to 1600k/s. ADS 4193B, +16k/s.,S:Enhanced ultraviolet emission. Helium weak. Interstellar Lyman alpha absorption observed by AEROBEE rocket.,S:Iota Ori B is a helium weak star. Helium deficient by factor of 10 relative to standard stars. P and Ga enormously,S:enhanced. uv 1240 absorption strong; weak 1548.,SB:ADS 4193A, 29.1351d, K 115.2k/s, V0 +26.6k/s, msin3i 15.7, asini 30.0.,VAR:Component B is NSV 2334, 7.4V.
HR 1900BD-03 114637055132332W 2350 05 35 35.8-03 15 106.40 B3IV 6.21.1G:Ori OB1c; between belt and sword of Orion.
HR 190145BD-04 1188370771323364196 05 35 39.5-04 51 215.26 F0III 9.019.1G:Ori OB1c2.
HR 1903ε46BD-01 96937128132346210IW Eps Ori05 36 12.8-01 12 071.70 B0Ia e8.7179.9C:In both infrared survey and UV CELESCOPE. Color excess E(B-V) = +0.08.,G:Ori OB1b2; Orion belt; cluster NGC 1980; nebulosity.,N:ALNILAM; Alnihan; Alnitam.,R:Diam. = 0.00067 - 0.00069".,RV:UV AEROBEE spectra indicate mass ejection at velocity up to 1800k/s.,S:Nitrogen deficient. Interstellar Lyman alpha absorption observed by AEROBEE rocket. Walborn declares "no e", but,S:Merrill found H alpha emission.,VAR:Alpha Cyg 1.64 - 1.74V.
HR 1906BD-05 133437150132351 2416 05 36 15.0-05 38 536.54 B3V vG:Ori OB1d1; sword of Orion.
HR 1907φ240BD+09 89837160112958I 05 36 54.3+09 17 264.09 K0IIIbFe-2 G:Sigma Pup group.
HR 1908BD+10 82837171947022420I 05 37 04.4+11 02 065.94 K4III
HR 1911BD-06 1255372091323594212 2433 05 36 35.7-06 03 545.72 B1V 3.25.2D:CPM. Combined mag., colors.,G:Ori OB1c; sword of Orion.,RV:ADS 4212B, +25.3k/s.
HR 1913BD+08 101637232112966 05 37 19.3+08 57 076.12 B2IV-V G:Ori OB1.
HR 1918BD-06 126237303132375 2467 05 37 27.4-05 56 186.05 B1V vG:Member of the local association (Pleiades group); Ori OB1c; sword of Orion.
HR 1920BD+07 95337320112979 05 38 01.1+07 32 295.88 B8III
HR 1923BD-04 119637356132387 2483 05 37 53.4-04 48 496.19 B2IV-V G:Ori OB1c; sword of Orion.
HR 1931σ48BD-02 1326374681324064241 AB05 38 44.8-02 36 003.81 O9.5V 0.80.2D:AB 4.1 O9.5V, 5.1 B0.5V, 170y, a = 0.247". Combined mag. and colors. C, 8.79V, A2V at 11" may be physical; D, 6.62V,,D:-0.20(B-V), B2V, at 13" and E = HR 1932, at 42" CPM with A. A multiple system similar to trapezium. ADS 4241 possibly,D:the most massive visual binary known, 35 solar masses.,DYN:0.003".,G:Ori OB1b1; Orion belt; HII reg.; IC 434; a trapezium system.,S:Hydrogen deficient. Interstellar Lyman alpha absorption observed by AEROBEE rocket.
HR 1932BD-02 1327374791324084241 EV1030 Ori05 38 47.1-02 35 396.65 B2Vp v0.80.2D:See HR 1931. Speculation that component E may be captured star older than the other components.,G:Ori OB1b1.,S:Strong HeI lines. Prototype He-rich star.,VAR:SX Ari 6.61 - 6.77V, 1.19080d, amp. 0.10y. H alpha emission profiles same period, possibly also 6d. Variable shell,VAR:spectrum. Magnetic variable.
HR 1933BD-06 127537481132405 05 38 37.8-06 34 265.96 B1.5IV G:Ori OB1c; sword of Orion.
HR 1934ω47BD+04 1002374901130012423 Ome Ori05 39 11.1+04 07 174.57 B3IIIe vG:Ori OB1a; in reflection nebula; member assoc. Tau-Ori R1 at 360 pc.,RV:vsini 160k/s also reported.,VAR:Gamma Cas 4.40 - 4.59V. Var. hydrogen emission.
HR 193749BD-07 114237507132411 05 38 53.1-07 12 474.80 A4V SB:445.74d, K 28.6k/s, V0 -1.5k/s, asini 146. Massive invisible component.
HR 1940BD-03 116637594132424 05 39 31.2-03 33 536.00 A8V s
HR 1942BD-09 119737635132425 05 39 30.8-09 42 246.50 B7V G:Ori OB1 assoc.,S:Weak 4481 MgII line.
HR 1948ζ50BD-02 133837742132444I4263 A2553 05 40 45.5-01 56 342.05 H O9.7Ib e2.22.4C:Color excess E(B-V) = +0.09.,D:AB 1.88 O9.5Ib, 4.02 B2III, 1508.6y, a = 2.728". Colors for combined light. Blended magnitude 1.76V, 18 and 6 solar,D:masses. B is HR 1949. C is 9v at 58", possibly physical.,DYN:0.004".,G:Ori OB1b1; Orion belt; exciting star of HII region S277; HII region; IC 434.,M:In line of sight of high-velocity interstellar cloud.,N:ALNITAK; Alnitah.,R:Diam. = 0.00047 - 0.00048".,RV:Mass ejection up to 1800k/s.,S:Nitrogen deficient. Interstellar Lyman alpha absorption observed by AEROBEE rocket. Also classified O9.5Ib and,S:O9.5Iab.,VAR:ADS 4263. Uncertain which component, HR 1948 or 1949, is the variable suspect.
HR 1949ζ50BD-02 1338377430I4263 B2553 05 40 45.6-01 56 344.21 H B0III 2.22.4D:See HR 1948.,DYN:0.004".,G:Ori OB1; Orion belt; HII region; IC 434.,M:In line of sight of high-velocity interstellar cloud.,S:Interstellar Lyman alpha absorption observed by AEROBEE rocket.
HR 1950BD-02 133737744132441 05 40 37.3-02 49 306.22 B1.5V G:Ori OB1b1.
HR 1952BD-01 100437756132445 2556 05 40 50.6-01 07 444.95 B2IV-V G:Ori OB1b1; Orion belt.,SB:27.1546d, K 88.5k/s, V0 +36.2k/s, msin3i 6.36, asini 22.6.,VAR:E?, 4.91 - 4.95V.
HR 1955BD+00 115237788113033 05 41 05.6+00 20 165.93 F0IV G:Ori OB1.
HR 1957BD-10 125837808150680 V1051 Ori05 40 46.0-10 24 346.52 B9.5IIIpSi4200 VAR:Alpha CV, amp. 0.03V, 0.04U, 1.099d.
HR 1959BD-02 1346379041324654279 05 41 40.3-02 53 466.42 A9IV-V 0.90.1D:CPM.,G:Ori OB1b1.
HR 196351BD+01 1105379841130562427I 05 42 28.6+01 28 294.91 K1III G:Ori OB1.
HR 1967BD-06 1293380891324774299 05 42 53.8-06 47 466.02 F3V 0.40.2D:AB 6.5 F5V, 6.9 F6V, 20.10y, a = 0.201".
HR 1970BD-01 101238099132480I V1197 Ori05 43 09.3-01 36 476.31 K4III SB:143.04d, K 9.1k/s, V0 +32.1k/s, asini 17.9.
HR 1978BD+03 1025383091130994333 05 45 01.9+04 00 296.09 gF0n 4.215.7D:BC, 9.5, 13.0v, sep. 1.3" at 17" from A, optical.,G:Ori OB1.
HR 1986BD-04 1235384951325154361 05 46 02.8-04 16 066.34 K1III+G0IV 2.76.9D:CPM. Companion 8.97V, +0.55(B-V), +0.08(U-B), G0IV.
HR 1987BD+09 9543852711312424324369 05 46 52.1+09 31 205.79 G8III 5.917.2D:Optical.
HR 1988BD+01 112638529113119 05 46 35.0+01 10 055.95 G4V G:Ori OB1.
HR 199952BD+06 1027387101131504390 05 48 00.2+06 27 155.27 A5V 0.11.4D:Binary. Companion F0.,DYN:0.005".,SB:vsini of secondary 70k/s.
HR 2001BD-10 128138735150814S V1031 Ori05 47 26.7-10 31 596.03 A4V SB:Spectroscopic triple system with nearly equal components.,VAR:EA 6.02 - 6.43V, 6.1 - 6.5p. 3.4057d. Redder at min.
HR 2004κ53BD-09 123538771132542220I 2641 05 47 45.4-09 40 112.06 B0.5Ia vC:Color excess E(B-V) = +0.07.,G:Ori OB1.,N:SAIPH.,R:Diam. 0.00044 - 0.00045".,S:Deficient in ultraviolet relative to most early-type supergiants shortward of 2800A.
HR 2007BD-04 1244388581325541155 05 48 34.9-04 05 415.97 G4V
HR 2014BD+09 97839007113179 05 50 02.6+09 52 165.80 G8III G:Probable Hyades group.
HR 2019BD+04 1052390511131862439I 05 50 13.1+04 25 245.97 gK2
HR 2024BD+01 114839118113198 Var05 50 30.0+02 01 285.98 G8III+A0IV S:vsini of secondary 85k/s.,SB:209.20d, K 19.2k/s, V0 +15.3k/s, asini 50.1.,VAR:Amp. 0.082.
HR 2030BD+19 11103928694942 05 52 23.4+19 52 056.06 G2IIIe+B8III S:vsini of secondary =<50k/s. Luminosity also classified V.
HR 203155BD-07 1187392911325912442 2677 05 51 22.0-07 31 055.35 B2IV-V G:Ori OB1c.
HR 203756BD+01 1151394001132202444I4467 2690 05 52 26.4+01 51 184.78 K1.5IIb 8.443.4
HR 2038BD+20 11563941777680 05 53 19.1+20 17 576.71 B9V
HR 2039BD-09 125539421132603 05 52 07.6-09 02 295.97 A2Vnp S:Lambda Boo star, Mg 4481 wk.
HR 2047χ154BD+20 11623958777705ID 05 54 22.9+20 16 344.41 G0V 0.6D:Possibly triple system. Magnitudes of separate components unknown.,D:A*, 14.25y, a = 0.095". Probably low-mass companion.,G:In UMa cluster; Sirius group? UMa stream.,R:Occultation diam. = 0.0016".
HR 2048BD+10 9273963294977I 05 54 13.4+10 35 136.12 G9II
HR 2050BD+11 9643966294979W 05 54 32.2+11 45 456.59 A2V 5.522.7D:Optical.
HR 2051BD+03 107139685113253 05 54 15.7+03 13 316.31 K0
HR 205257BD+19 112639698949862447 2722 05 54 56.7+19 44 595.92 B2V 2.20.0G:Cas-Tau OB1.,SB:6.1, 8.3v, sep. 0.0006", 7.9969d, K 70k/s, V0 +21k/s, msin3i 8.84, asini 7.70.,VAR:Beta C?, amp. <0.02V.
HR 2057BD+00 120839775113265I 05 54 44.1+00 58 066.00 K0III
HR 2058BD-04 128139777132635 05 54 34.7-04 03 506.57 B1.5V G:Ori OB1c.
HR 2061α58BD+07 105539801113271224I4506 Alp Ori05 55 10.3+07 24 250.50 M1-2Ia-Iab e9.9174.4D:Components B-E all 11 to 14.5v at sep. 40" to 174" from A. D 13.5 at 77", optical. Speckle interferometric observations,D:in 1983 November (Karovska et al. 1986, ApJ, 308, 360) show A to be a triple system with closer companion at 0.06",D:(mag. diff. 3.4 at H alpha) and more distant companion at 0.51" (mag. diff. 4.6 at H alpha).,M:Radio star. Circumstellar shell of gas and dust. The gas shell detached from photosphere at about 5 stellar radii. Diam,M:of optically thin dust shell possibly 1".5. Surrounded by reflection nebula. Gas shell up to 100 R, dust shell from 12,M:to 250 R. Highly limb darkened.,N:BETELGEUSE; Betelguex; Betelgeuze; Beteiguex; Al Mankib.,R:The first star whose diameter was measured with the interferometer, .047", by Michelson and Pease at Mt. Wilson in 1920.,RV:Expanding circumstellar shell, extending at least 29" or about 600 stellar radii. If rate constant, initial potassium,RV:ejection about 2700 years ago. 2.85-cm radio emission indicates mass loss.,S:Ultraviolet FeII emission. 5-micron observations indicate carbon monoxide. STRATOSCOPE II observations indicate infrared,S:H2O bands. UV observations from OAO-2 indicate C and O underabundant. MgII emissions indicate a cooler shell,S:surrounding the supergiant.,SB:ADS 4506A, 5.781y, K 3.08k/s, V0 +20.33k/s, asini 81.773.,VAR:ADS 4506A, SRc 0.40 - 1.3V, 2335d. Also superimposed waves 200-400d.
HR 2063BD+20 1171a3981677730I U Ori05 55 49.3+20 10 305.40 M6.5IIIe P:Polarization possibly due to circumstellar dust scattering.,R:Occultation diam. = 0.0143 - 0.01545".,S:Infrared star. OH and water emission. SiO maser source. OH emission strong in infrared. Also H2O microwave,S:emission. IR spectra show water vapor. Strong water bands at light minimum.,VAR:M 4.8 - 12.6v, 368.3d. Period has varied between 367.9 and 376.0d. Colors correspond to 6.72V.
HR 2067BD+13 103639881950044519 05 56 03.5+13 55 316.60 G5IV 1.947.5D:All companions optical.
HR 2070BD-04 128939910132652 05 55 30.3-04 36 595.87 gK2
HR 2071BD-04 129139927132653 05 55 35.4-04 47 186.28 A2III
HR 2075BD+09 101639985113284 05 56 28.0+09 30 355.99 A0IV
HR 2076BD+11 97540020950272453 05 56 49.5+11 31 165.87 K2III
HR 2093BD+01 116840282113306I 05 57 54.2+01 13 286.22 M0III
HR 2097BD-01 107840347132700 05 58 11.7-00 59 396.22 K0
HR 2099BD+12 96840369950754562 05 58 53.2+12 48 315.70 K2III+A5V 1.00.4D:126.0y, e 0.56, a 0.265", i 75.4d, mag. diff 1.4.,S:Also classified K0III + A7V.
HR 210059BD+01 1171403721133154555 V1004 Ori05 58 24.4+01 50 135.90 A5mDel Del 4.736.7SB:2.7405d, K 55.6k/s, V0 +45.3k/s, asini 2.09.,VAR:Delta Sct 5.88 - 5.92V, 0.0611d.
HR 210360BD+00 1239404461133211161W 05 58 49.6+00 33 115.22 A1V s 6.619.1
HR 2109BD-01 108340574132723 05 59 37.7-01 26 406.63 B8IIIn
HR 2113BD-03 1256406571327322457I 2770 06 00 03.4-03 04 274.53 K1.5IIIFe-1.5
HR 2124μ61BD+09 1064409321133894617 2792 06 02 23.0+09 38 514.12 A2V 1.80.3D:AB 4.4 A2V, 6.0 F3V, 17.5d, a = 0.276"; ABxP, 18.25y, a = 0.089". Magnitude and colors for combined light. A is alpha,D:CVn var., SB1, 4.45d; B is SB2, 4.78d. Component C, 14v at 18" probably optical.,DYN:0.023".,G:Mel 25; the Hyades.,S:K/m indicate A3/A7, respectively.,SB:ADS 4617A, 4.4476d, K 28.4k/s, V0 var., asini 1.74. Alternate orbit 4.4478d, K 29.2k/s, V0 +40.9k/s,,SB:asini 1.79. Speckle interferometric sep. 0.153" 1980.94; unresolved 1983.94. ADS 4617AB, 18y, K 14.9k/s,,SB:V0 +43.3k/s, asini 851. ADS 4617B is SB2, 4.78d.,VAR:ADS 4617A, Alpha CV 4.10 - 4.18V.
HR 2127BD+01 119540964113392 06 02 17.1+01 41 406.59 B8V
HR 213064BD+19 11864104095166D 2803 06 03 27.3+19 41 265.14 B8III 0.00.0D:Triple system, SB, sep. 0.0014". Third component found by occulation, 6.5v at 0.060".,S:Luminosity also given as V.,SB:14.57d.
HR 2133BD+11 10094107695170 06 03 24.7+11 40 516.08 A0V s
HR 2135χ262BD+20 12334111777911D 2809 06 03 55.2+20 08 184.63 B2Ia t0.00.0D:Occultation binary, sep. 0.02".,G:Gem OB1.,S:Emission lines possibly variable.,VAR:H alpha profile var.
HR 214463BD+05 108541361113429 06 04 58.2+05 25 125.67 gG7
HR 214566BD+04 111641380113430230 06 04 58.4+04 09 315.63 G4III
HR 2159ν67BD+14 11524175395259232 06 07 34.3+14 46 064.42 B3V G:Cas-Tau OB1; member of Pleiades group.,SB:131.211d, K 33.3k/s, V0 +24.1k/s, asini 46.2.
HR 2167BD+08 120242035113503 06 08 47.2+08 40 126.55 B9V
HR 2174BD+02 1139421111135074749 06 08 57.9+02 29 585.73 A3Vn v1.229.3D:AB CPM. B is 6.94V, +0.04(B-V), -0.02(U-B), A0V, vsini 120k/s. Component C, 8.9v at 118". HD erroneously assigned the,D:preceding number, HD 42092, to the fainter following component of ADS 4749. Consequently the data for the two primary,D:components are sometimes interchanged. vsini for component A is 250k/s.,VAR:ADS 4749A, spectrum variable. Sometimes shows shell features.
HR 2184BD+18 11124235195337 06 11 01.8+18 07 466.33 K1II
HR 2191BD+13 11514247795352 06 11 27.9+13 38 196.04 A0Vnn
HR 219368BD+19 125342509953592471W 06 12 01.3+19 47 265.75 B9.5V 3.586.3
HR 219869BD+16 10354254595365 06 12 03.3+16 07 504.95 B5Vn G:Cas-Tau OB1; member of Pleiades group.,SB:19.0d, K 15k/s.
HR 2199ξ70BD+14 11874256095362W 06 11 56.4+14 12 324.48 B3IV 7.940.0G:Member of the local association (Pleiades group); Cas-Tau OB1.,SB:45.10d, K 22.4, V0 +19.3, asini 13.41.
HR 2207BD+18 11294278495397 06 13 33.4+18 40 496.58 B8Vnn G:Member of the local association (Pleiades group).
HR 2208BD+10 10504280795394 06 13 12.6+10 37 396.45 G2V
HR 2210BD-02 151242824132965 06 12 44.4-02 30 166.62 A2V
HR 2214BD+17 11824295495419W 06 14 28.6+17 54 235.88 A5Vm 0.00.5D:Binary. Occultation indicates sep. 0.27".
HR 2218BD-03 134543023132994 06 13 54.3-03 44 295.83 G8III G:Probable Hyades group.
HR 222071BD+19 127043042954324842 06 14 50.9+19 09 235.20 F6V 5.625.4D:B and C optical. Aitken and Wallenquist disagree on magnitude difference: Aitken AB 6.0, AC 5.3, AD 4.8; Wallenquist,D:5.6, 7.6, 7.3, respectively. Separation 25", 76" and 86", respectively.
HR 2222BD+13 117343112954442474IW 2878 06 15 08.5+13 51 045.91 B1V 6.621.3D:Companion, RV -2k/s, optical.,M:Old disk population runaway star.
HR 222372BD+16 10604315395447 06 15 25.1+16 08 355.30 B7V
HR 222973BD+12 10814324795457 06 15 45.0+12 33 045.33 B9II-III
HR 2231BD+06 117243285113650 06 15 40.1+06 03 586.07 B6Ve
HR 2232BD+04 1181433171136532478 06 15 47.0+04 17 016.64 B3IV
HR 2233BD-00 1234433181330282477 06 15 34.3-00 30 445.65 F6V
HR 2235BD+17 11914333595473I 06 16 23.8+17 10 536.39 K5II
HR 2236BD+01 127543358113656W 06 15 54.0+01 10 096.37 F5IV: 0.00.2D:6.8 F5, 7.0, 28.1y, a = 0.165".
HR 224174BD+12 108443386954761169W 06 16 26.6+12 16 205.04 F5IV-V 4.2204.0
HR 2246BD+01 127843461113668 06 16 21.2+01 04 496.63 B6V
HR 224775BD+09 11734352511367524804890 06 17 06.6+09 56 335.39 A2V 0.20.1D:AP 6.1 A2IV, 9.0y, a = 0.109". B and C both 8.4v at 63" and 117", both optical. D, 11v at 5" from C. AP resolved,D:by speckle interferometry 1983.93, sep. 0.06". Aa resolved by speckle interferometry 1983.93, but unresolved 1983.94.,DYN:0.020".
HR 2248BD+07 121643526113673 06 16 58.4+07 03 116.57 B7III
HR 2250BD+14 12334358395494 06 17 33.3+14 03 306.59 A0V
HR 2251BD+05 116843587113683W 2896 06 17 16.1+05 06 015.71 F9V 3.9189.7
HR 2253BD+14 1235436839550224814901 06 18 05.6+14 22 586.16 A3V 6.925.4D:AB binary. B, 13.0v at 2". C, optical? 13.28V, +0.56(B-V), +0.34(U-B).
HR 2258BD+17 12034381995519 V1155 Ori06 19 01.8+17 19 306.32 B9IIIpSiCr: VAR:Amp. 0.04U, 1.0785d. H and K lines vary.
HR 2259BD+09 118443821113710 06 18 40.5+09 02 506.24 K0 SB:1325d, k 10.92k/s, v0 -24.85k/s, asini 179.
HR 2269BD+14 12474403395543I 2917 06 20 04.2+14 39 045.69 K3Ib VAR:Lc?, 5.68 - 5.81V.
HR 2275BD-02 156444131133118I 2918 06 19 59.6-02 56 404.90 M1III
HR 2276BD+11 11284417395563 06 20 52.3+11 45 236.54 B5III
HR 2287BD+12 11234449795599 06 22 36.5+12 34 126.00 F0III
HR 2302BD+16 11354486795641 06 24 52.9+16 03 256.33 G9III
HR 2308BD+14 12834498495659I BL Ori06 25 28.1+14 43 196.24 C5II S:Technetium found in spectrum.,VAR:Lb 8.5 - 9.7p.

Revised+Historic NGC/IC, Version 22/9, © Dr. Wolfgang Steinicke [277]
Planetary Nebulae
NameRADecTypebMagvMagDimDreyer DescriptionIdentification, Remarks
NGC 202205 42 06.2+09 05 12PN12.411.60.65planetary, pB, vS, vlEPK 196-10.1, CS=15.2
Galactic Nebulae
NameRADecTypebMagvMagDimDreyer DescriptionIdentification, Remarks
NGC 178805 06 53.2-03 20 28RN5 × 3B, cL, R, bM *** 15, * 10, 1½' 318°, inv in the nebyLBN 916
NGC 197305 35 04.8-04 43 55EN7.05 × 5* 8·9 inv in Neb (V 30)CED 55B, part of N 1977
NGC 197505 35 18.0-04 41 00EN7.010 × 5B ** inv in neb (V 30)CED 55C, part of N 1977
NGC 197605 35 17.1-05 23 25EN+RN3.74.040 × 35!!! Θ¹ Orionis and the great nebM 42, LBN 974, Orion nebula
NGC 197705 35 18.0-04 49 15RN+OCL20!!, c¹ 42 Orionis and nebOCL 525.1
NGC 198005 35 25.0-05 54 54EN+OCL14 × 14vF, vvL, ι 44 Orionis invIota Orionis Nebula, OCL 529
NGC 198205 35 31.3-05 16 03EN6.820 × 15! vB, vL, R with tail, mbM * 8·9M 43, CED 55G, Pos of CS
NGC 199905 36 25.4-06 42 57EN+RN2 × 2* 10, 11 inv in NebLBN 979
NGC 202305 41 38.2-02 15 33EN+RN10 × 10B * in M of L, lE nebLBN 954
NGC 202405 41 42.0-01 51 24EN30 × 30! irr, B, vvL, black sp inclCED 55P, Flame nebula
NGC 206405 46 18.4+00 00 21RN1 × 1eF, vS, * 9·10 np 4'LBN 1627, part of M 78
NGC 206705 46 32.0+00 07 54RN8 × 3F, pL, M 78 sDG 79, part of M 78
NGC 206805 46 45.0+00 04 48RN8.08 × 6B, L, wisp, gmbN, 3 st inv, rM 78, DG 80
NGC 207105 47 07.2+00 17 39RN8.07 × 5D * (10 & 14 m) with vF, L chevLBN 938
NGC 216306 07 49.5+18 39 27RN3 × 2eF, E, dif, * 11 att sCED 62, DG 87, LBN 855, bipolar
NGC 217406 09 00.3+20 38 26EN3.5 × 2eF, bet 3 vF stCED 67A, knot in N 2175
NGC 217506 09 38.6+20 29 18EN40 × 30* 8 m in neb (Auw No 21)LBN 854, OCL 476
IC 42005 32 14.0-04 31 12RN6vF, spp * 9 (not verified)LBN 963, vdB 44
IC 42305 33 22.0-00 36 52EN2 × 2vF, L oval ringLBN 913, CED 52
IC 42405 33 37.2-00 24 47RN120vF, L, brightest fDG 59
IC 42605 36 31.0-00 17 54RN7 × 7vF, 5' diamLBN 921, CED 55J
IC 42705 36 18.0-06 37 00EN+RNL, probably connected with Great Neb
IC 42805 36 24.2-06 27 06EN+RNL, probably connected with Great Neb
IC 42905 38 18.0-07 02 12RNvF, vS, R [? inv in f one]brightest part of IC 430, near V883 Ori
IC 43005 38 18.2-07 02 26RN11 × 11Neb band 10' l, np * 5mCED 55K, DG 69
IC 43105 40 14.0-01 27 48RN5 × 3Neb * 8.6LBN 944, CED 55L
IC 43205 40 55.0-01 30 24RN8 × 4Neb, lE, * 8.4 invLBN 946, CED 55M
IC 43405 41 00.0-02 27 12EN11.060 × 10Neb, 60' l, south from ζ OrionisLBN 953, CED 55N, Horsehead nebula
IC 43505 43 00.0-02 18 46RN4 × 3Neb, * 8.5CED 55Q
IC 215906 09 57.0+20 25 54ENvF, vL, difCED 67B, in N 2175
IC 216206 13 06.0+17 58 48EN3 × 3vF, pL, R, * 10 inv pLBN 859, Sh2-255
Open Clusters
NameRADecTypebMagvMagDimDreyer DescriptionIdentification, Remarks
NGC 166204 48 27.0+10 55 48I2p6.412Cl of L & S sc stOCL 470
NGC 166304 49 24.3+13 08 27IV2p15.814.59Cl, lRi, st L & SOCL 461
NGC 198105 35 12.0-04 26 00III2p4.228Cl, vB, lRi, st L, scOCL 525
NGC 211205 53 45.2+00 24 39II3m9.118Cl, pL, lRi, pC, st SOCL 509
NGC 214106 02 55.0+10 26 47II3r9.410F, pS, dif (Sw not found)OCL 487
NGC 214306 03 07.4+05 43 42OCL11Cl, L, pRi, vlC, st 10
NGC 216906 08 24.3+13 57 53I3p5.96Cl, S, lRi, pmC, ** Σ 848OCL 481
NGC 2175 S06 10 54.0+20 36 36OCL5* 8 m in neb (Auw No 21)Lund 1182, near N 2175
NGC 218006 09 36.2+04 42 44OCL6Cl, pRi, lC, st L and S
NGC 218606 12 07.1+05 27 31II2p8.75Cl, pL, pRi, pC, st L and SOCL 498
NGC 219406 13 45.9+12 48 24III1r8.59Cl, L, Ri, gvmCMOCL 495
NGC 220206 16 50.7+05 59 48OCL7** Chief of Cl
Galaxies
NameRADecTypebMagvMagDimDreyer DescriptionIdentification, Remarks
NGC 166104 47 07.7-02 03 18Sbc14.013.21.4 × 0.9vF, vS, bMUGC 3166, MCG 0-13-8, CGCG 394-9
NGC 167004 49 42.6-02 45 36S013.812.81.3 × 0.7vF, vSMCG 0-13-16, CGCG 394-17
NGC 167104 49 33.8+00 15 12S013.912.90.9 × 0.6pF, pS, RIC 395, UGC 3178, MCG 0-13-15, CGCG 394-16
NGC 167804 51 35.4-02 37 22S014.213.21.1 × 0.8vF, SMCG 0-13-19, CGCG 394-20
NGC 168204 52 19.7-03 06 19E-S014.513.50.9 × 0.9vF, vS, II 528 f 12s ±, * 9 s 4'.5MCG -1-13-28, NPM1G -03.0219
NGC 168304 52 17.5-03 01 27Sa15.614.71 × 0.4vF, RNPM1G -03.0218
NGC 168404 52 31.1-03 06 20E213.012.02.2 × 1.7pF, pS, R, bM, * 9, 225° ±MCG -1-13-31, IRAS 04500-0311
NGC 168504 52 34.2-02 56 59SB0-a15.014.11.3 × 0.9FMCG -1-13-32, IRAS 04500-0301
NGC 169004 54 19.3+01 38 26E?15.314.31 × 1vF, vS, am vS st, L * spUGC 3198, MCG 0-13-27, CGCG 394-30
NGC 169104 54 38.3+03 16 04SB0-a12.912.02.3 × 1.8F, S, * 11 invUGC 3201, MCG 1-13-9, MK 1088, CGCG 420-19, IRAS 04520+0311
NGC 170904 58 44.0-00 28 40S015.214.20.9 × 0.7vF, vS, np II 516MCG 0-13-54, CGCG 394-58, NPM1G -00.0168
NGC 171304 58 54.7-00 29 19E113.912.71.4 × 1.2F, S, R, bMUGC 3222, MCG 0-13-56, CGCG 394-59
NGC 171904 59 34.5-00 15 38Sa14.513.61.1 × 0.3pF, S, iR, pslbMUGC 3226, MCG 0-13-60, CGCG 394-63
NGC 172905 00 15.6-03 21 11Sc13.612.91.7 × 1.4vF, pL, 2B st v nrMCG -1-13-43, IRAS 04577-0325
NGC 174005 01 54.7-03 17 45E-S013.912.91.5 × 1.2eF, vS, * 12 spMCG -1-13-46, NPM1G -03.0222
NGC 175305 02 32.2-03 20 41Sa15.414.51.4 × 0.6eeF, pS, R, sf h 342MCG -1-13-48, IRAS 05000-0324
NGC 176205 03 37.0+01 34 24Sc13.412.61.7 × 1.1vF, vSUGC 3238, MCG 0-13-67, CGCG 394-73, IRAS 05010+0130
NGC 181905 11 46.0+05 12 03SB013.512.51.3 × 1vF, S, RUGC 3265, MCG 1-14-2, MK 1194, CGCG 421-4, IRAS 05091+0508
NGC 184305 14 06.1-10 37 36Sc13.412.72.1 × 1.7F, S, R, lbMMCG -2-14-8, UGCA 107, IRAS 05117-1041
NGC 187505 21 45.7+06 41 20E-S014.713.70.8 × 0.7eF, S, RMCG 1-14-31, CGCG 421-39, Arp 327, VV 169, HCG 34A
NGC 192405 28 01.9-05 18 37SBbc13.312.51.6 × 1.2vF, pL, iR, st nrMCG -1-14-11, NPM1G -05.0244, IRAS 05255-0521
NGC 211005 52 11.2-07 27 23E-S013.512.51.7 × 1.2eF, cS, lE, pslbM, erMCG -1-15-4, IRAS 05497-0728
NGC 211905 57 26.9+11 56 56E215.014.01.2 × 1F, vS, R, bMUGC 3380
IC 39204 46 25.8+03 30 20S013.712.71 × 0.8pB, S, R, N = 12.5UGC 3158, MCG 1-13-1, CGCG 420-2, VV 665, IRAS 04438+0324
IC 40405 13 19.6+09 45 17S15.414.60.5 × 0.4vF, vS, stellar, * 13 closeCGCG 446-1
IC 40905 19 33.5+03 19 02S14.713.90.7 × 0.5pB, R, biN?MCG 1-14-24, CGCG 421-26
IC 41205 21 56.7+03 29 11Sab14.513.71.3 × 0.6vF, vS, stellar, Pos 115° Dist 36"IC 2123, UGC 3298, MCG 1-14-34, KCPG 107A, VV 225, VV 630, CGCG 421-41
IC 41305 21 58.7+03 28 56S014.813.80.9 × 0.7eF, vS, stellar, Pos 115° Dist 36"IC 2124, UGC 3299, MCG 1-14-35, KCPG 107B, VV 225, VV 630, CGCG 421-42
IC 41405 21 55.0+03 20 35S14.814.00.5 × 0.3eF, * 9 sf 2'MCG 1-14-33, CGCG 421-40, IRAS 05192+0317
IC 42105 32 08.5-07 55 04SBbc15.014.23.3 × 2.9vF, LMCG -1-15-1, UGCA 111, NPM1G -07.0196, IRAS 05297-0757
IC 211205 00 30.0+04 23 11S15.014.20.5 × 0.2vF, pS, difCGCG 420-27

«Strasbourg-ESO Catalogue of Galactic Planetary Nebulae» Acker et al., 1992 [141]
PNGRA
J2000.0
Dec
J2000.0
Main IDPKIRASDiscovererIdentitiesoDiam
["]
rDiam
["]
Dist
[kpc]
Rvel
[km/s]
ExpVel
[km/s]
C* NameC* MagC* SP Type
PN G190.3-17.705 05 34+10 42 22J 320190-17.105028+1038JONCKHEERE 1916ARO 60, VV 20, VV' 29 6.4 7.1 -23.4 ± 0.7 15.0 (O-III)AG82 39B: 14.45, V: 14.42WC
PN G193.6-09.505 40 44+12 21 17H 3-75193-09.1MAYALL 1964ARO 218 24. +9.5 ± 19.0
PN G196.6-10.905 42 06+9 05 18NGC 2022196-10.105393+0903HERSCHEL 1785ARO 61, VV 23, VV' 34 19. 1.8 +14.0 ± 2.0 26. (O-III)AG82 49, HD 37882, PLX 1306B: 15.89
PN G197.2-14.205 31 48+6 56 09K 1- 7197-14.1KOHOUTEK 1963A 10, ARO 176 34. 20. +57.6 ± 3.5AG82 46B: 20.2
PN G197.4-06.405 59 25+10 41 41WeDe 1WEINBERGER et al 1983 925. +16.0 16. (N-II)AG82 53U: 15.8, B: 17.1, V: 17.4Hg O(H)
PN G197.8-03.306 11 09+11 46 47A 14197-03.1ABELL 1955A55 10, ARO 125, VV' 39 33. AG82 59, CSI +11 -06084, UBV 6225U: 15.74, B: 15.75, V: 15.24F7 V?
PN G198.6-06.306 02 23+9 39 03A 12198-06.105595+0939ABELL 1964ARO 220 37. 35. AG82 56B: 19.7
PN G201.9-04.606 14 34+7 34 32We 1- 4WEINBERGER 1977 40. AG82 60B: >21.1
PN G204.0-08.506 04 47+3 56 27A 13204-08.1ABELL 1955A55 9, ARO 124, VV' 38, YM 28 153. 20. (O-III), 22.5 (N-II)AG82 58, CSI +03 -06022, UBV 6150U: 19.06, B: 20.06, V: 19.87

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