Constellation Sagitta (Arrow)

Sagitta
Sagitta: IAU Constellation Map [150]

Properties

Sagitta is located in a star-rich region of the Milky Way, north of the star Atair in Aquila. It is a small constellation, but with a distinctive shape reminiscent of an arrow flying from west to east. The constellation, which is 80 square degrees, culminates around midnight on July 17th. [9, 15]

Stars with Proper Names:

  • α Sge: Sham, Alsahm
Data for constellation Sagitta [150]
IAU NameSagitta
IAU GenitiveSagittae
IAU Abbr.Sge
English NameArrow
Season (47° N)April … November
Right Ascension18h 57m 21s … 20h 20m 45s
Declination+16° 04' 45" … +21° 38' 37"
Area80 deg2
Neighbours (N↻)Vul, Her, Aql, Del

Deep-Sky Object Descriptions

Mythology and History

Sagitta is the arrow with which Heracles hit the eagle who pecked at the liver of Prometheus every day, as punishment for stealing the fire from heaven for the people. According to another representation, the arrow is supposed to be the symbol of cosmic light.

The Greeks called the constellation Tóxon or Oistos, the Romans Latinized it to Sagitta and the Arabs spoke of El Sham . [10, 21]

Catalogs

Yale Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991) [154]
HR B F RA [hms] Dec [dms] vMag spType dMag Sep ["]
7301119 15 17.4+21 13 565.64 A4V
7369219 24 22.1+16 56 166.25 A2III-IV 0.8340.6
7463ε419 37 17.4+16 27 465.66 G8III v2.788.9
7479α519 40 05.8+18 00 504.37 G1II 6.890.
7488β619 41 02.9+17 28 344.37 G8IIIaCN0.5
7536δ719 47 23.3+18 32 033.82 M2II+A0V
7546ζ819 48 58.7+19 08 325.00 A3V 0.50.2
7574919 52 21.8+18 40 196.23 O7.5Iaf
76091019 56 01.3+16 38 055.36 G5Ib v
76221119 57 45.4+16 47 215.53 B9III
7635γ1219 58 45.4+19 29 323.47 M0-III e
76451320 00 03.3+17 31 005.37 M4IIIa 7.528.5
76721520 04 06.2+17 04 125.80 G1V 0.9203.7
7679η1620 05 09.5+19 59 285.10 K2III
7705θ1720 09 56.6+20 54 556.48 F5IV 0.683.9
77461820 16 19.7+21 35 556.13 K1III

Revised+Historic NGC/IC, Version 22/9, © Dr. Wolfgang Steinicke [277]
Planetary Nebulae
NameRADecTypebMagvMagDimDreyer DescriptionIdentification, Remarks
NGC 687920 10 26.6+16 55 25PN13.012.50.15planetary, stellar = 10mPK 57-8.1, CS=15.0
NGC 688620 12 42.8+19 59 24PN12.211.40.17planetary, stellar = 10 mPK 60-7.2, CS=15.7
IC 499720 20 08.8+16 43 56PN11.610.50.22Planetary, stellarPK 58-10.1, CS=14.6
Globular Clusters
NameRADecTypebMagvMagDimDreyer DescriptionIdentification, Remarks
NGC 683819 53 46.1+18 46 44XI8.47.2Cl, vL, vRi, pmC, st 11…16M 71, GCL 115

References

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
15«Hartung's Astronomical Objects for Southern Telescopes» by David Malin and David J. Frew; Melbourne University Press 1995; ISBN 0-522-84553-3
21«Taschenatlas der Sternbilder» von Josef Klepesta und Antonin Rükl; Verlag Werner Dausien; ISBN 3-7684-2384-0
150IAU: The Constellations, 11. Oktober 2020; iau.org/public/themes/constellations
154Yale Bright Star Catalog, 15. Oktober 2020; tdc-www.harvard.edu/catalogs/bsc5.html
277«Historische Deep-Sky Kataloge» von Dr. Wolfgang Steinicke; klima-luft.de/steinicke (2021-02-17)