List of stars in Serpens - AbsoluteAstronomy.com

This is the list of notable star

Star

A star is a massive, luminous sphere of plasma held together by gravity. At the end of its lifetime, a star can also contain a proportion of degenerate matter. The nearest star to Earth is the Sun, which is the source of most of the energy on Earth...

s in the constellation

Constellation

In modern astronomy, a constellation is an internationally defined area of the celestial sphere. These areas are grouped around asterisms, patterns formed by prominent stars within apparent proximity to one another on Earth's night sky....

Serpens
Serpens
Serpens is a constellation of the northern hemisphere. It was one of the 48 constellations listed by the 2nd century astronomer Ptolemy and it remains one of the 88 modern constellations defined by the International Astronomical Union....

, sorted by decreasing brightness.

Name	B Bayer designation A Bayer designation is a stellar designation in which a specific star is identified by a Greek letter, followed by the genitive form of its parent constellation's Latin name...	F Flamsteed designation Flamsteed designations for stars are similar to Bayer designations, except that they use numbers instead of Greek letters. Each star is assigned a number and the Latin genitive of the constellation it lies in...	HD Henry Draper Catalogue The Henry Draper Catalogue is an astronomical star catalogue published between 1918 and 1924, giving spectroscopic classifications for 225,300 stars; it was later expanded by the Henry Draper Extension , published between 1925 and 1936, which gave classifications for 46,850 more stars, and by the...	HIP	vis. mag. Apparent magnitude The apparent magnitude of a celestial body is a measure of its brightness as seen by an observer on Earth, adjusted to the value it would have in the absence of the atmosphere...	abs. mag. Absolute magnitude Absolute magnitude is the measure of a celestial object's intrinsic brightness. it is also the apparent magnitude a star would have if it were 32.6 light years away from Earth...	Dist. (ly)	Sp. class Stellar classification In astronomy, stellar classification is a classification of stars based on their spectral characteristics. The spectral class of a star is a designated class of a star describing the ionization of its chromosphere, what atomic excitations are most prominent in the light, giving an objective measure...	Notes
α Ser Alpha Serpentis Alpha Serpentis is a triple star system in the constellation Serpens, in its head . Alpha Serpentis has the proper names Unukalhai, from the Arabic عنق الحية ‘Unuq al-Ħayyah "the Serpent's Neck", and Cor Serpentis from the Latin "the Heart of the Serpent"...	α	24	140573	77070	2.63	0.87	73	K2III	Unukalhai, Unukalhay, Unuk al Hay, Unuk Elhai, Unuk, Cor Serpentis
η Ser Eta Serpentis Eta Serpentis is a binary star in the constellation Serpens. The primary, Eta Serpentis A, is an orange K-type giant with an apparent magnitude of +3.23. It has a distant 12th magnitude companion, Eta Serpentis B, 3 arcminutes away...	η	58	168723	89962	3.23	1.84	62	K0III-IV	Donghai, Tung Hae
μ Ser Mu Serpentis Mu Serpentis is a star in the constellation Serpens, in its head . Mu Serpentis is a white A-type main sequence dwarf with an apparent magnitude of +3.54...	μ	32	141513	77516	3.54	0.14	156	A0V	Tiānrǔ (天乳)
ξ Ser Xi Serpentis Xi Serpentis is a triple star system in the constellation Serpens. The primary star, Xi Serpentis A, is a yellow-white F-type giant with an apparent magnitude of +3.54. It is a spectroscopic binary with an orbital period of 2.29 days. A 13th magnitude companion, Xi Serpentis B, is located 25...	ξ	55	159876	86263	3.54	0.99	105	F0IIIp	Nanhai, Nan Hae
β Ser Beta Serpentis Beta Serpentis is a star system in the constellation Serpens, in its head . It was a member of indigenous Arabic asterism al-Nasaq al-Sha'āmī, "the Northern Line" of al-Nasaqān "the Two Lines", along with β Her , γ Her and γ Ser .According to the catalogue of stars in the Technical Memorandum...	β	28	141003	77233	3.65	0.29	153	A3V	Chow
ε Ser Epsilon Serpentis Epsilon Serpentis is a star in the constellation Serpens, in its head .It was a member of indigenous Arabic asterism al-Nasaq al-Yamānī, "the Southern Line" of al-Nasaqān "the Two Lines"., along with α Ser , δ Ser , δ Oph , ε Oph , ζ Oph and γ Oph .According to the...	ε	37	141795	77622	3.71	2.04	70	A2m	Ba, Pa, component of the δ Ser system; quadruple star Multiple star A multiple star consists of three or more stars which appear from the Earth to be close to one another in the sky. This may result from the stars being physically close and gravitationally bound to each other, in which case it is physical, or this closeness may be merely apparent, in which case... ; Delta Scuti-type Delta Scuti variable A Delta Scuti variable is a variable star which exhibits variations in its luminosity due to both radial and non-radial pulsations of the star's surface. Typical brightness fluctuations are from 0.003 to 0.9 magnitudes in V over a period of a few hours, although the amplitude and period of the... variable star Variable star A star is classified as variable if its apparent magnitude as seen from Earth changes over time, whether the changes are due to variations in the star's actual luminosity, or to variations in the amount of the star's light that is blocked from reaching Earth...
δ Ser A Delta Serpentis Delta Serpentis is a star system in the constellation Serpens, in its head . It was a member of indigenous Arabic asterism al-Nasaq al-Yamānī, "the Southern Line" of al-Nasaqān "the Two Lines"., along with α Ser , ε Ser , δ Oph , ε Oph , ζ Oph and γ Oph .According to the...	δ	13	138917	76276	3.80	−0.24	210	F0IV	Qin, Tsin, component of the δ Ser system; quadruple star Multiple star A multiple star consists of three or more stars which appear from the Earth to be close to one another in the sky. This may result from the stars being physically close and gravitationally bound to each other, in which case it is physical, or this closeness may be merely apparent, in which case... ; Delta Scuti-type variable star
δ Ser B Delta Serpentis Delta Serpentis is a star system in the constellation Serpens, in its head . It was a member of indigenous Arabic asterism al-Nasaq al-Yamānī, "the Southern Line" of al-Nasaqān "the Two Lines"., along with α Ser , ε Ser , δ Oph , ε Oph , ζ Oph and γ Oph .According to the...	δ	13	138918		3.80
γ Ser	γ	41	142860	78072	3.85	3.62	36	F6V	Zheng, Ching
κ Ser Kappa Serpentis Kappa Serpentis is a star in the constellation Serpens, in its head .Kappa Serpentis is a red M-type giant with an apparent magnitude of +4.09. It is approximately 348 light years from Earth....	κ	35	141477	77450	4.09	−1.05	348	M1III
ο Ser Omicron Serpentis Omicron Serpentis is a star in the constellation Serpens.Omicron Serpentis is a white A-type main sequence dwarf with an apparent magnitude of +4.24. It is approximately 168 light years from Earth. It is classified as a Delta Scuti type variable star and its apparent magnitude varies by 0.01...	ο	56	160613	86565	4.24	0.68	168	A2Va	Delta Scuti-type variable star
ν Ser Nu Serpentis Nu Serpentis is a binary star in the constellation Serpens. It is approximately 193 light years from Earth.The primary component, Nu Serpentis A, is a white A-type main sequence dwarf with an apparent magnitude of +4.32. It is separated from Nu Serpentis B, a magnitude +8.4 companion, by 46...	ν	53	156928	84880	4.32	0.45	193	A0/A1V
λ Ser Lambda Serpentis Lambda Serpentis is a star in the constellation Serpens, in its head .- Hunt for substellar objects :...	λ	27	141004	77257	4.42	4.07	38	G0Vvar
ι Ser Iota Serpentis Iota Serpentis is a star system in the constellation Serpens, in its head . It is approximately 192 light years from Earth....	ι	21	140159	76852	4.51	0.66	192	A1V
ζ Ser Zeta Serpentis Zeta Serpentis is a star in the constellation Serpens.Zeta Serpentis is a yellow-white F-type main sequence dwarf with an apparent magnitude of +4.62. It is approximately 75.7 light years from Earth....	ζ	57	164259	88175	4.62	2.79	76	F3V
θ¹ Ser	θ¹	63	175638	92946	4.62	1.59	132	A5V	Alya, Alga, Dzaneb al Haiyet, Cauda Serpentis
ρ Ser Rho Serpentis Rho Serpentis is a star in the constellation Serpens.Rho Serpentis is an orange K-type giant with an apparent magnitude of +4.74. It is approximately 395 light years from Earth....	ρ	38	141992	77661	4.74	−0.68	395	K5III
π Ser Pi Serpentis Pi Serpentis is a star in the constellation Serpens, in its head .Pi Serpentis is a white A-type main sequence dwarf with an apparent magnitude of +4.82. It is approximately 177 light years from Earth....	π	44	143894	78554	4.82	1.15	177	A3V
σ Ser Sigma Serpentis Sigma Serpentis is a star in the constellation Serpens.Sigma Serpentis is a yellow-white F-type main sequence dwarf with an apparent magnitude of +4.82. It is approximately 89.2 light years from Earth....	σ	50	147449	80179	4.82	2.64	89	F0V
θ² Ser	θ²	63	175639	92951	4.98	1.77	143	A5Vn
5 Ser		5	136202	74975	5.04	3.08	81	F8III-IV	MQ Ser; BY Draconis variable BY Draconis variable BY Draconis variables are main sequence variable stars of late spectral types, usually K or M. The name comes from the archetype for this category of variable star system, BY Draconis. They exhibit variations in their luminosity due to rotation of the star coupled with star spots, and other...
b Ser	b	36	141851	77660	5.09	1.65	159	A3Vn
10 Ser		10	137898	75761	5.15	2.28	122	A8IV
τ¹ Ser	τ¹	9	137471	75530	5.16	−2.09	918	M1III
R Ser R Serpentis R Serpentis or R Ser is a Mira variable type star....			141850		5.20				Mira variable Mira variable Mira variables , named after the star Mira, are a class of pulsating variable stars characterized by very red colors, pulsation periods longer than 100 days, and light amplitudes greater than one magnitude in infrared and 2.5 magnitude in visual...
d Ser	d	59	169986		5.20
d Ser	d	59	169985	90441	5.20	−0.63	479	G0III+...
ω Ser Omega Serpentis Omega 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....	ω	34	141680	77578	5.21	0.68	263	G8III
16 Ser		16	139195	76425	5.26	0.97	235	K0p
3 Ser		3	135482	74649	5.32	−0.46	467	K0III
χ Ser Chi Serpentis Chi Serpentis is a star in the constellation Serpens.Chi Serpentis is a white A-type main sequence dwarf with a mean apparent magnitude of +5.34. It is approximately 228 light years from Earth. It is classified as an Alpha2 Canum Venaticorum type variable star, and its magnitude varies by 0.03...	χ	20	140160	76866	5.34	1.11	228	A0p Sr	α² CVn-type Alpha2 Canum Venaticorum variable An Alpha2 Canum Venaticorum variable is a type of variable star. These stars are chemically peculiar main sequence stars of spectral class B8p to A7p. They have strong magnetic fields and strong silicon, strontium, or chromium spectral lines... variable star
6 Ser		6	136514	75119	5.35	0.98	244	K3III
c Ser	c	60	170474	90642	5.38	1.08	236	K0III
A² Ser	A²	25	140873	77227	5.39	−0.10	408	B8III	PT Ser
43 G. Ser Cap			145206	79195	5.39	−0.51	494	K4III
32 G. Ser Cau			168415	89851	5.39	−0.41	470	K3III
QY Ser			142574	77902	5.45	−0.88	601	M0III
A¹ Ser	A¹	11	138562	76133	5.50	0.91	270	K0III
φ Ser Phi Serpentis Phi Serpentis is a star in the constellation Serpens.Phi Serpentis is an orange K-type subgiant with an apparent magnitude of +5.54. It is approximately 227 light years from Earth and thus has an absolute magnitude of 1.3....	φ		142980	78132	5.54	1.33	227	K1IV
6 G. Ser Cau			159358	86019	5.54	0.23	377	B8Vn
64 Ser		64	175869	93051	5.56	−2.08	1101	B9IIIp...
22 G. Ser Cap			140775	77163	5.57	0.21	384	A1V
4 Ser		4	135559	74689	5.62	2.15	161	A4V
45 Ser		45	144874	79007	5.63	1.05	269	A7V
			136138	74896	5.68	0.93	290	G5IV
47 Ser		47	145002	79072	5.69	−0.52	568	M3.5IIIa	FS Ser
υ Ser Upsilon Serpentis Upsilon Serpentis is a star in the constellation Serpens.Upsilon Serpentis is a white A-type main sequence dwarf with an apparent magnitude of +5.71. It is approximately 252 light years from Earth....	υ	31	141187	77336	5.71	1.27	252	A3V
44 G. Ser Cau			170200	90497	5.71	−1.07	739	B8III-IV
10 G. Ser Cau			160018	86313	5.74	0.16	425	K0III
20 G. Ser Cau			165438	88684	5.74	3.02	114	K1IV
e Ser E Serpentis The star e Serpentis is a spectroscopic binary in the constellation of Serpens. It consists of two A-type main sequence stars orbiting each other with a period of approximately 14.7 days. The overall apparent visual magnitude of the system varies between 5.74 and 5.86....	e		171978	91322	5.76	−0.72	644	A2V
τ⁷ Ser Tau7 Serpentis Tau7 Serpentis is an A-type star in the constellation of Serpens, approximately 174 light-years from the Earth. It has an apparent visual magnitude of approximately 5.804....	τ⁷	22	140232	76878	5.80	2.17	174	A2m
34 G. Ser Cap			143553	78442	5.82	1.49	239	K0III:
66 G. Ser Cau			173495	92027	5.82	−0.87	709	A1V
19 G. Ser Cau			165402	88670	5.84	−0.37	570	B8III-IV
ψ Ser Psi Serpentis Psi Serpentis is a star system in the constellation Serpens. It is approximately 47.9 light years from Earth.The primary component, Psi Serpentis A, is a yellow G-type main sequence dwarf with an apparent magnitude of +5.86...	ψ	23	140538	77052	5.86	5.03	48	G5V
6 G. Ser Cap			136028	74901	5.88	−1.51	979	K5III
FL Ser			134943	74386	5.90	−1.13	830	M4III
τ⁵ Ser Tau5 Serpentis Tau5 Serpentis is a F-type main sequence star in the constellation of Serpens, approximately 160 light-years from Earth. It has an apparent visual magnitude of approximately 5.938....	τ⁵	18	139225	76424	5.93	2.48	160	F3V
41 G. Ser Cap			145085	79120	5.93	0.33	430	K5III
42 G. Ser Cap			145148	79137	5.93	3.51	99	K1+...
13 G. Ser Cau			161701	87074	5.93	−0.04	510	B9V
16 G. Ser Cau			163336	87813	5.93	1.52	249	A0V
61 Ser		61	170920	90844	5.93	−0.28	570	A4III
9 G. Ser Cau			159877	86266	5.94	−3.63	2672	F0IV
			141353	77412	5.98	0.33	440	K2III
28 G. Ser Cau			167768	89587	5.99	0.97	329	G3III
τ⁶ Ser Tau6 Serpentis Tau6 Serpentis is a G-type giant star in the constellation of Serpens, approximately 450 light-years from the Earth. It has an apparent visual magnitude of approximately 6.000, and is a member of the Ursa Major Stream....	τ⁶	19	140027	76810	6.00	0.30	450	G8III
			137853	75674	6.01	−0.90	786	M1III
			139087	76372	6.04	−0.64	706	K0III:
39 Ser		39	142267	77801	6.07	4.86	57	G0IV
43 Ser		43	144046	78685	6.07	0.68	389	G9III
τ³ Ser	τ³	15	139074	76337	6.10	0.58	414	G8III:
8 Ser		8	137006	75342	6.11	2.41	179	F0V
NW Ser (35 G. Ser Cap)			168797	89977	6.14	−3.93	3361	B3Ve	Be star Be star A Be star is a B-type star with prominent emission lines of hydrogen in its spectrum. The designation is combined by the spectral class, B, and the lowercase e denoting emission in the spectral classification system. Line emission from other atomic ions might be present as well, but is typically...
73 G. Ser Cau			175679	92968	6.14	0.11	523	G8III
τ⁸ Ser Tau8 Serpentis Tau8 Serpentis is an A-type main sequence star in the constellation of Serpens, approximately 320 light-years from the Earth. It has an apparent visual magnitude of approximately 6.144...	τ⁸	26	140729	77111	6.15	1.18	321	A0V
			144889	78985	6.15	−0.05	566	K4III
37 G. Ser Cau			169493	90253	6.15	0.54	432	F1V
14 G. Ser Cau			162757	87540	6.17	1.56	273	K1III:
5 G. Ser Cau			157968	85397	6.20	2.92	148	F7V
67 G. Ser Cau			173954	92254	6.20	−0.97	886	K5
			142357	77835	6.21	1.48	288	F5II-III
τ² Ser	τ²	12	138527	76069	6.22	0.61	431	B9V
			139862	76733	6.22	−1.34	1058	G8II
			137510	75535	6.26	3.16	136	G0V
			142763	77995	6.26	−2.26	1646	B8III
38 G. Ser Cap			144426	78840	6.27	0.81	402	A3m
40 Ser		40	142500	77910	6.28	1.94	241	A7Vn	FP Ser; Delta Scuti-type
7 Ser		7	136831	75230	6.29	0.62	445	A0V
			142244	77782	6.29	0.43	485	K0
29 G. Ser Cau			167833	89623	6.29	0.69	430	A8V
			135263	74505	6.31	1.63	282	A2V
23 G. Ser Cap			140815	77186	6.32	−0.07	619	K0III
21 G. Ser Cau			165462	88671	6.32	0.36	507	G8IIp
10 G. Ser Cap			136442	75101	6.34	3.50	120	K0V
27 G. Ser Cau			167564	89512	6.35	0.55	472	A4V
			136643	75125	6.36	0.20	555	K0
12 G. Ser Cau			161023	86769	6.36	3.21	139	F0V
36 G. Ser Cau			169268	90174	6.36	2.25	216	F6III-IV
63 G. Ser Cau			172365	91499	6.36	−1.25	1087	F8Ib-II
			138085	75810	6.38	0.45	499	G8III-IV
24 G. Ser Cau			166103	88981	6.38	−0.18	669	K1II
MV Ser (49 G. Ser Cau)			170973	90858	6.41	−1.41	1194	A0sp...	α² CVn-type variable star
45 G. Ser Cap			145936	79522	6.45	1.46	324	K0
2 G. Ser Cau			156971	84883	6.46	3.09	154	F1III+...
4 G. Ser Cap			135615	74695	6.47	−1.38	1212	K0
FQ Ser (40 G. Ser Cap)			145050	79086	6.47	0.69	468	M4III
FR Ser (51 G. Ser Cau)			171586	91142	6.47	1.41	335	A2pvar	α² CVn-type variable star
			140438	76985	6.48	0.05	629	G5III
4 G. Ser Cau			157969	85405	6.48	0.70	466	K0II/III
			138803	76198	6.49	2.50	205	F3III
60 G. Ser Cau			172088	91394	6.49	3.00	163	F9IV
			135061	74441	6.50	−0.06	669	K2
5 G. Ser Cap			136027	74895	6.50	0.89	432	K0
48 G. Ser Cap			146740	79834	6.50	0.18	598	K0
τ⁴ Ser Tau4 Serpentis Tau4 Serpentis is a M-type bright giant star in the constellation of Serpens, approximately 520 light-years from the Earth. It is classified as a semiregular late-type variable star, and its magnitude varies between +5.89 and +7.07 with a period of approximately 100 days...	τ⁴	17	139216	76423	6.51	0.50	520	M5II-III	semiregular variable star
14 Ser		14	139137	76427	6.51	0.52	514	G8III+...
29 Ser		29	141040	77249	6.70	−0.19	780	A3
46 Ser		46	144937	79047	6.74	1.55	355	A3
HD 168443 HD 168443 HD 168443 is a yellow dwarf star of about the mass of our Sun. It is in the constellation of Serpens Cauda, 123 light years from our solar system. It is known to be orbited by one large planet and a brown dwarf. The brown dwarf takes 30 times longer to orbit the star than the gas giant planet....			168443	89844	6.92	4.03	124	G5IV	has a planet Extrasolar planet An extrasolar planet, or exoplanet, is a planet outside the Solar System. A total of such planets have been identified as of . It is now known that a substantial fraction of stars have planets, including perhaps half of all Sun-like stars... (b HD 168443 b HD 168443 b is a planet seven times as massive as Jupiter. Given the high mass, this planet is likely to be a gas giant, or possibly a small brown dwarf depending on the orbital inclination. It orbits closer to its star than Mercury does to the Sun, and its surface temperature is likely to be very... ) and a brown dwarf Brown dwarf Brown dwarfs are sub-stellar objects which are too low in mass to sustain hydrogen-1 fusion reactions in their cores, which is characteristic of stars on the main sequence. Brown dwarfs have fully convective surfaces and interiors, with no chemical differentiation by depth...
8 G. Ser Cap HD 136118 HD 136118 is a F-type main-sequence star located approximately 171 light-years away in the constellation of Serpens Cauda. It is an F-type dwarf and has apparent magnitude +6.94.- Brown dwarf companion :...			136118	74948	6.94	3.35	171	F9V	has a red dwarf Red dwarf According to the Hertzsprung-Russell diagram, a red dwarf star is a small and relatively cool star, of the main sequence, either late K or M spectral type.... companion that was formerly a known planet
HD 168746 HD 168746 HD 168746 is an 8th magnitude star in the constellation of Serpens. It is very similar to our Sun, a yellow dwarf star . It is not visible to the unaided eye, but is easily visible with binoculars or a small telescope. In 2000 a planet was announced orbiting it....			168746	90004	7.95	4.78	141	G5V	has a planet
HD 175541 HD 175541 \|- bgcolor="#FFFAFA"HD 175541 is an intermediate-mass subgiant star in the constellation Serpens. That means when this star was a main-sequence, it was an A-type star. It is an 8th magnitude star about 416 light years from Earth...			175541	92895	8.03	2.49	417	G8IV	has a planet
Gl 710 Gliese 710 Gliese 710 is a variable orange dwarf star in the constellation Serpens Cauda, with visual magnitude 9.66 and a mass of 0.4–0.6 solar masses....			168442	89825	9.66	8.26	63	K7V	future encounter at 1.1 ly
GSC 00465-01282					12.57	5.25	930	K0V	has a transiting planet (b)
COROT-11					12.94	4.20	~1820	F6V	text-align:left; > has a transiting planet (b)
COROT-9					13.7	5.4	1500	G3V	has a transiting planet (b COROT-9b COROT-9b is an exoplanet orbiting the star COROT-9, approximately 1500 light years away in the constellation Serpens. COROT-9b's distance of nearest approach to its parent star of approximately 0.36 AU is the largest of all known transiting planets, with an orbital period of 95 days. The transit of... )
COROT-23					15.63			F9/G0V	has a transiting planet (b)

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