Omega Serpentis

ω Serpentis
Observation data Epoch J2000.0 Equinox J2000.0
Constellation	Serpens
Right ascension	15^h 50^m 17.5^s
Declination	+02° 11' 47"
Apparent magnitude (V)	+5.21
Distance	263 ± 15 ly (81 ± 5 pc)
Spectral type	G8III
Other designations
34 Serpentis, HR 5888, HD 141680, SAO 121215, HIP 77578

Omega Serpentis (ω Ser, ω Serpentis) is a star in the constellation Serpens.

Omega Serpentis is a yellow G-type giant with an apparent magnitude of +5.21. It is approximately 263 light years from Earth. It is a member of the Ursa Major Stream.

Planetary system

In April 2013, a planet was identified.^[1]

The Omega Serpentis planetary system
Companion (in order from star)	Mass	Semimajor axis (AU)	Orbital period (days)	Eccentricity	Inclination	Radius
b	1.7 M_J	1.1	277.02 ± 0.52	0.106	—	—

↑ Sato, Bun'ei; Omiya, Masashi; Harakawa, Hiroki; Liu, Yu-Juan; et al. (2013). "Planetary Companions to Three Evolved Intermediate-Mass Stars: HD 2952, HD 120084, and omega Serpentis". Publ. Astron. Soc. Japan: 1–15. arXiv:1304.4328.

Stars
(list)

Bayer	α (Unukalhai) β (Chow) γ δ (Tsin) ε ζ η (Tang) θ (Alya) ι κ λ μ ν ξ ο π ρ σ τ¹ τ² τ³ τ⁴ τ⁵ τ⁶ τ⁷ τ⁸ υ φ χ ψ ω

Flamsteed	3 4 5 6 7 8 10 11 14 16 25 29 36 39 40 43 45 46 47 59 60 61 64 3 Her 47 Oph

Variable	R W X RT UZ VV VY WX AA AN AO AP AR AU BQ CT CV CW EG FH FI FK FL FQ FR LV LW LX MR MS MT MV MY NN NO NQ NW OO OU PS QV QX QY V382 V411

HR	5665 5690 5692 5706 5711 5740 5745 5783 5796 5831 5850 5859 5861 5874 5909 5913 5931 5992 6005 6011 6014 6016 6449 6544 6562 6568 6600 6620 6666 6681 6755 6756 6757 6785 6830 6840 6843 6858 6890 6898 6928 6993 6999 7008 7048 7076 7144

HD	135061 135615 136027 136118 138085 142245 143436 145936 146740 157969 168112 168443 168746 175541

Gliese	Gliese 701 Gliese 710 GJ 1224

Other	ADS 9544 AS 296 COROT-9 COROT-11 COROT-23 GX 17+2 IRAS 18418-0440 MWC 297 MWC 922 PG 1510+234 PG 1605+072 PSR B1534+11 PSR J1719-1438 Serpens FIRS 1 Serpens SVS 20 Serpens X-1

Association	Serpens OB2

Open	IC 4756 Messier 16 NGC 6604 NGC 6605 Serpens south

Globular	Messier 5 NGC 6535 NGC 6539 Palomar 5

NGC	5887 5910 5911 5913 5919 5920 5921 5926 5928 5931 5936 5937 5940 5942 5941 5944 5951 5953 5954 5952 5956 5955 5957 5960 5962 5964 5970 5972 5975 5977 5980 5983 5984 5988 5991 5990 5994 5996 5997 6003 6004 6008 6006 6007 6009 6012 6010 6014 6020 6017 6018 6021 6022 6023 6027 6027a 6027b 6027c 6027d 6027e 6029 6033 6037 6036 6051 6063 6065 6066 6070 6080 6100 6118 6172

Other	Arp 72 Arp 220 3C 317 3C 318 3C 321 3C 323.1 3C 324 3C 326 4C 11.50 Hoag's Object IRAS 15107+0724 NRAO 530 PDS 456 PG 1553+113 PKS 1546+027

Other

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