List of stars in Gemini explained

This is the list of notable stars in the constellation Gemini, sorted by decreasing brightness.

Name	B	F	Var	HD	HIP	RA	Dec	vis. mag.	abs. mag.	Dist. (ly)	Sp. class	Notes
	β	78		62509	37826			1.16	1.09	34	K0III	Al-Ras al-Taum al-Mu'ahar, Muekher al Dzira, Posterior Brachii;^[1] suspected variable, ; has a planet (b)
	α	66		60179A	36850			1.90	1.05	52	A2Vm	Al-Ras al-Taum al-Muqadim, Aoul al Dzira, Prima Brachii
	γ	24		47105	31681			1.93	−0.60	105	A0IV	Alhena, Almeisan, Nir al Henat, Prima του al Henat
	μ	13		44478	30343			2.87	−1.39	232	M3.0III	Tejat Posterior, Tejat, Calx, Pish Pai; semiregular variable,
	α	66		60178				2.88			Am
	ε	27		48329	32246			3.06	−4.15	903	G8Ib	Mebsuta; variable star,
	η	7		42995	29655			3.31	−1.84	349	M3III	Propus, Praepes, Tejat Prior; semiregular and Algol variable,
	ξ	31		48737	32362			3.35	2.13	57	F5IV	Alzir; suspected variable,
	δ	55		56986	35550			3.50	2.22	59	F0IV...	Wasat
	κ	77		62345	37740			3.57	0.35	143	G8III	Jīxīn (積薪),^[2] 隆博星 (Takahiro-boshi)
	λ	54		56537	35350			3.58	1.27	94	A3V...	suspected variable,
	θ	34		50019	33018			3.60	−0.30	197	A3III
	ι	60		58207	36046			3.78	0.85	126	G9III+...	Propus
	ζ	43		52973	34088			4.01	−3.76	1168	G1Ib	Mekbuda; classical Cepheid,
	υ	69		60522	36962			4.06	−0.28	240	K5III	suspected variable,
	ν	18		45542	30883			4.13	−1.81	502	B6III	variable star,	Nucatai
		1		41116	28734			4.16	0.84	151	G7III	Propus
	ρ	62		58946	36366			4.16	2.82	60	F0V...	suspected variable
	σ	75		62044	37629			4.23	1.36	122	K1III SB	RS CVn variable,
	τ	46		54719	34693			4.41	−0.42	302	K2III	suspected variable, ; has a brown dwarf companion
		30		48433	32249			4.49	−0.15	276	K1III
	e	38		50635	33202			4.71	2.48	91	F0Vp
	ο	71		61110	37265			4.89	1.46	158	F3III	Jishui
	g	81		62721	37908			4.89	−0.21	341	K5III
	χ			66216	39424			4.94	0.45	258	K2III
	φ	83		64145	38538			4.97	0.51	254	A3V
	b	65		59148	36429			5.01	−0.34	383	K2III
	A	57		57727	35846			5.04	1.67	154	G8III
	f	74		61338	37300			5.04	−1.02	532	M0III	suspected variable,
		51	BQ	55383	34909			5.07	−1.59	700	K3V	semiregular variable
		64		59037	36393			5.07	1.58	163	A4V
		56		57423	35699			5.09	−0.50	428	M0III	suspected variable,
				52960	34033			5.14	−1.65	743	K3III
	π	80		62898	38016			5.14	−1.04	562	M0III	suspected variable,
		26		48097	32104			5.20	2.05	139	A2V
	ω	42		52497	33927			5.20	−3.33	1655	G5II	slow irregular variable,
		63		58728	36238			5.20	2.54	111	F5IV-V...	Triple star system
		68		60107	36760			5.27	−0.03	375	A1Vn	suspected variable
	d	36		49908	32921			5.28	−0.77	529	A2V
	c	76		62285	37704			5.30	−1.01	595	K5III	suspected variable,
				60318	36896			5.34	0.50	302	K0III
		85		64648	38722			5.38	0.29	339	A0Vs
		28		48450	32311			5.42	−0.79	570	K4III
				59686	36616			5.45	0.62	302	K2III	has a planet (b)
		45		54131	34440			5.47	0.61	305	G8III
				53329	34267			5.55	0.69	305	G8IV
			NZ	61913	37521			5.55	−1.93	1022	M3S	semiregular variable,
				46374	31277			5.57	1.10	256	K2III:
		70		60986	37204			5.58	0.72	306	K0III
		35		49738	32814			5.68	−2.64	1502	K3III
				49968	32968			5.68	−0.30	513	K5III
			IS	49380	32740			5.72	0.85	307	K3II	semiregular variable
		41		52005	33715			5.73	−5.53	5821	K3Ib	suspected variable
		37		50692	33277			5.73	4.56	56	G0V	suspected variable,
		3	PU	42087	29225			5.75			B2.5Ib	α Cyg variable,
		47		54801	34722			5.75	0.36	390	A4IV	suspected δ Sct variable
		53		55870	35152			5.75	−1.85	1079	M1III	variable star,
		59		57927	35941			5.77	1.73	209	F0:III:	δ Sct variable
				52556	33914			5.78	−0.70	644	K1III:
				61885	37508			5.79	−1.12	786	M2III	semiregular variable
		5		42398	29379			5.83	−0.99	753	K0III
		52		55621	35025			5.84	0.77	337	M1III	suspected variable
		48		55052	34819			5.85	0.70	349	F5IV
		33	OV	49606	32753			5.85	−1.38	926	B7III	α^2 CVn variable,
				52609	33937			5.86	−2.99	1918	M2III	suspected variable
				51000	33421			5.91	0.55	385	G5III
				42049	29196			5.93	−5.45	6151	K4III	slow irregular variable,
				52711	34017			5.93	4.53	62	G4V
				61603	37428			5.93	−2.42	1523	K5
				53686	34358			5.94	−0.66	681	K4III
		61		58579	36156			5.94	0.47	405	F2Vn	suspected δ Sct variable
			NP	52554	33929			5.96	−2.13	1353	M1.5	slow irregular variable,
				47575	31876			5.99	1.25	289	A2V
		44		53257	34182			6.00	0.17	478	B8Vn
				52976	34055			6.01	−1.93	1264	K5	variable star,
				63889	38394			6.03	0.50	415	K1III:
				40589	28500			6.04	−4.73	4657	B9Iab	variable star,
				44927	30570			6.05	−0.19	578	A2Vn
				61859	37580			6.05	2.36	178	F7V
				63589	38319			6.06	2.04	208	A2m
				63352	38147			6.07	−0.46	660	K0
		8		43261	29789			6.09	0.46	436	G8III
				47358	31813			6.09	0.54	419	G9III
				61295	37339			6.16	1.53	275	F6II
		58		57744	35842			6.17	1.27	312	A1V
				45951	31067			6.18			K2III...
				61219	37269			6.18	0.56	435	A2V
		82		63208	38106			6.18	−1.36	1052	G2III+...	suspected variable
				56386	35345			6.19	−0.18	612	A0Vn
		39		51530	33595			6.20	2.82	155	F7V	suspected variable
		16		45394	30769			6.22	0.13	538	A2Vs
				59059	36340			6.23	−0.63	769	B9IV
				61630	37404			6.23	−1.28	1035	K0
		9	PX	43384	29840			6.24	−2.79	2090	B3Ia	α Cyg variable,
				45506	30815			6.24	2.19	210	G5
				62141	37636			6.25	1.38	307	K0III
		20		46136	31158			6.26	1.08	354	F6V...
				51330	33465			6.26		3070	F2Ib-II
				47863	32020			6.28	−0.63	786	A1V
				53899	34428			6.31	−0.75	840	K1
				44234	30218			6.32	0.78	417	G9:III:
				44780	30501			6.35	−0.68	832	K2III
				49059	32539			6.35	0.74	431	A2V
		(141)		40724	28561			6.36	0.09	584	B8V
				58898	36325			6.36	1.39	321	K2III
				61035	37165			6.37	3.01	153	F0
		19		46031	31105			6.38	1.33	334	A8V
				56176	35253			6.38	1.59	296	G7IV
		40		51688	33650			6.40	−1.43	1199	B8III
			OT	58050	35933			6.41	−3.53	3170	B2Ve	γ Cas variable,
				47415	31850			6.43	3.70	115	F8IV
				54563	34608			6.43	3.11	150	G9V
				47020	31650			6.44	0.33	543	A3V
25 Gem		25		47731	32019			6.45	−1.73	1411	G5Ib
				57049	35548			6.45	−1.18	1094	A2Vn
		50		55130	34860			6.46	3.24	144	F8V	spectroscopic binary suspected variable,
		32		48843	32404			6.47	−1.25	1140	A9III
				53744	34367			6.47	0.34	549	B9V
				54986	34763			6.50	−1.14	1098	K5
		6	BU	42543	29450			6.51	−4.09	4289	M1Ia-ab	semiregular variable,
		79		62510	37811			6.53	0.78	460	A1V
		15		45352	30757			6.54	0.31	575	K0
			W	46595	31404			6.54			F5-G1	classical Cepheid,
			TV	42475	29416			6.56		3100	M1Iab	semiregular variable,
		10		43740	30003			6.58	−0.34	789	G5
			PZ	45314	30722			6.64			O9:pe	Be star
		2		41543	28969			6.67	−0.45	867	K0
		23		46781	31525			6.73	2.25	257	F5
			OU	45088	30630			6.76		48.02	K3Vk	BY Dra variable,
			BN	60848	37074			6.85		1960	O8V:pev	γ Cas variable,
				50554	33212			6.86	4.40	101	F8V	has a planet (b)
		4		42216	29288			6.88	−0.21	853	B9
		11	LU	43818	30046			6.91	−2.28	2248	B0II	β Cep variable
		12		43836	30049			6.95		2530	A0II
				63433	38228			6.9		73.0		has three planets (b, c, and D)
		49		55156	34861			7.05	−0.01	842	A0
			PS	52961	34038			7.37			A0	RV Tau variable,
			WY	42474	29425			7.38			M2Iabep+B	slow irregular variable and eclipsing binary,
			R	53791	34356			7.68	1.65	525	S3.5-6.5/6e	technetium star Mira variable,
	ν	18		257937				8.00
				67087	39767			8.05		290	F8V	style=text-align:left;	has two planets (b & c)
			NQ	59643	36623			8.01		2860	C6,2eV	Z And and semiregular variable,
			V345	60987	37197			8.2		528	F0	W UMa variable
		15		257498	30756			8.59	7.31	59	G0
			SS	41870				8.67			G2/5I	RV Tau variable,
			CR		31349			8.67		1140	Cv+...	semiregular variable
			RY	58713	36209			8.68		1330	A2V+ K-03IV-V	Algol variable,
			RX	49521	32791			9.24		1520	A2	Algol variable,
			TU	42272				9.40			C6,4	semiregular variable,
	α	66	YY	60179C				9.64	8.79	52	dM1e+dM1e	Algol variable and flare star;
			RW	250371	28537			9.79		438	B6V	Algol variable,
			AD	262433	32180			9.80			F5	classical Cepheid,
			AL	266913				9.89			F6V	Algol variable,
			V429					10.00		85	K5Ve	style=text-align:left;	BY Dra variable,
				265866	33226			10.11		18.211	M4.0V	Mira variable,
			AF	264750				10.58			A0	Algol variable,
			DX		31306			10.73				classical Cepheid,
				262389				10.91		1013	F	style=text-align:left;	HAT-P-56, has a transiting planet (b)
			OY	51585				11.20			Bpe	Be star,
			ZZ	44653				11.2			Ce	Mira variable,
								11.34		228	K7	style=text-align:left;	has a transiting planet (b)
								11.42		2094		style=text-align:left;	has a transiting planet (b)
			BM	57160	35617			11.50		2590	N	semiregular variable
								11.82		998	F8	style=text-align:left;	has a transiting planet (b)
								11.89		1367	F	style=text-align:left;	has a transiting planet (b)
			RR		35667			11.92			A8	RR Lyr variable,
								13.51		443	K	style=text-align:left;	has a transiting planet (b)
			BG									β Lyr variable
			PQ					13.7			CV	intermediate polar,
			U	64511				14.9		413	sd:Be+...	prototype dwarf nova (SS Cyg) and eclipsing binary,
			DN	50480				15.0				nova
			DM	48328				17.4				nova,
2MASSW J0746425+200032								17.7		37.8	L0.5	binary brown dwarf
			IR					18.7				SU UMa variable,
												binary white dwarf
			AW					19.4				SU UMa variable,
								24.90				pulsar
												binary pulsar/white dwarf
WISEP J060738.65+242953.4										25.4	L9	brown dwarf
												pulsar
CXOU J061705.3+222127												pulsar
												pulsar

See also

• List of stars by constellation

References

• Web site: ESA . European Space Agency . The Hipparcos and Tycho Catalogues . 1997 . 2006-12-26 .
• Web site: Kostjuk . N. D. . HD-DM-GC-HR-HIP-Bayer-Flamsteed Cross Index . 2002 . 2006-12-26 .
• Web site: Roman . N. G. . Identification of a Constellation from a Position . 1987 . 2006-12-26 .
• Web site: Naming Stars . 13 December 2017 .

Notes and References

1. http://articles.adsabs.harvard.edu//full/1895MNRAS..55..429K/0000433.000.html E.B Knobel - On a catalogue of stars in the Calendarium of Al Achsasi Al Mouakket
2. https://penelope.uchicago.edu/Thayer/E/Gazetteer/Topics/astronomy/_Texts/secondary/ALLSTA/Gemini*.html Richard Hinckley Allen: Star Names — Their Lore and Meaning: Gemini