List of stars in Crux explained

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

Name	B	Var	HD	HIP	RA	Dec	vis. mag.	abs. mag.	Dist. (ly)	Sp. class	Notes
	β		111123	62434			1.25	−3.92	352	B0.5III	Mimosa, Becrux; binary star or possibly triple star system, 20th brightest of all stars; β Cep variable, Probable high-mass member of Lower Centaurus–Crux subgroup of the Scorpius–Centaurus association.^[1]
α^1 Cru (α Cru A)	α^1		108248	60718			1.4	−3.6	321	B0.5IV	component of Acrux, 23rd brightest star, multiple star, spectroscopic binary. Possible member Lower Centaurus–Crux subgroup of the Scorpius–Centaurus association (debated).
	γ		108903	61084			1.60	−0.56	88	M4III	Gacrux, SRV,
α^2 Cru (α Cru B)	α^2		108249				2.09	−2.88	321	B1V	component of Acrux. Possible member Lower Centaurus–Crux subgroup of the Scorpius–Centaurus association (debated).
	δ		106490	59747			2.79	−2.45	364	B2IV	Imai,^[2] β Cep variable; Member of the Lower Centaurus–Crux subgroup of the Scorpius–Centaurus association.^[3]
	ε		107446	60260			3.59	−0.63	228	K3/K4III	Ginan, suspected variable
	μ^1		112092	63003			4.03	−1.29	377	B2IV-V	binary star suspected variable; Member of the Lower Centaurus–Crux subgroup of the Scorpius–Centaurus association.
	ζ		106983	60009			4.06	−1.16	361	B2.5V	double star, Member of the Lower Centaurus–Crux subgroup of the Scorpius–Centaurus association.
	η		105211	59072			4.14	2.67	64	F2III	double star
	θ^1		104671	58758			4.32	0.08	230	Am	spectroscopic binary
			110956	62327			4.62	−0.80	396	B3V	double star; suspected slow irregular variable; Member of the Lower Centaurus–Crux subgroup of the Scorpius–Centaurus association.
	λ		112078	63007			4.62	−0.59	360	B4Vn	β Cep variable,, Member of the Lower Centaurus–Crux subgroup of the Scorpius–Centaurus association.
	ι		110829	62268			4.69	1.78	125	K1III	optical double
	θ^2		104841	58867			4.72	−2.10	753	B2IV	spectroscopic binary; β Cep variable,
α Cru C			108250				4.86			B4IV	probable optical double with the α Cru system; suspected variable
		CH	110335	61966			4.91	−2.60	1035	B6IV	γ Cas variable
	μ^2		112091	63005			5.08	−0.14	361	B5Vne	component of μ Cru system; γ Cas variable,
		BZ	110432	62027			5.27	−2.12	982	B2pe	high-mass X-ray binary; γ Cas variable,
			112244	63117			5.34	−3.47	1884	O9Ib	emission-line star; variable star,
			107696	60379			5.38	0.28	342	B9V	suspected variable
		BL	108396	60781			5.38	−0.82	566	M4/M5III	semiregular variable,
			103961	58379			5.44	−1.00	633	B8III	suspected variable,
		BG	108968	61136			5.49	−3.07	1680	F5Ib-G0p	Cepheid variable,
			103884	58326			5.59	−0.73	598	B3V	suspected variable
			104035	58427			5.59	−4.11	2835	A3Ib
		DS	111613	62732			5.71	−4.10	2991	A2Iab	emission-line star; α Cyg variable
			111904	62894			5.75	−4.71	4025	B9Ia	suspected variable,
			108732	60969			5.78	−0.40	562	M1III	variable star,
			106068	59517			5.91	−4.96	4866	B9Ia	suspected variable,
			107543	60308			5.91	−2.73	1743	K4III + (F)	variable star,
			104933	58921			5.95	−0.59	661	M2III	suspected variable
			109000	61158			5.96	1.62	240	A8III
	κ		111973	62931			5.98	−2.55	1661	B5Ia	member of the Jewel Box star cluster (note that κ Cru usually refers to the cluster itself); variable star,
			110506	62058			5.99	0.47	414	B9Vn	Member of the Lower Centaurus–Crux subgroup of the Scorpius–Centaurus association.
			108355	60771			6.02	−0.50	657	B8IV
			108501	60851			6.05	1.11	317	A0Vn
			110461	62026			6.06	0.77	372	B9V	Member of the Lower Centaurus–Crux subgroup of the Scorpius–Centaurus association.
			105841	59396			6.08	1.34	290	F0III
			108570	60870			6.15	3.02	138	K0/K1III
HD 104430			104430	58642			6.16	1.28	309	A1V
		DL	106343	59678			6.20	−7.66	~20000	B1.5Ia	α Cyg variable
			108530	60861			6.21	0.31	494	K2III
			105437	59200			6.22	−2.89	2159	K3/K4II
			109492	61443			6.22	2.89	151	G4IV
			104900	58910			6.30	1.12	354	B9Vn
			108395	60780			6.35	−0.79	874	K4III
			104111	58469			6.36	−5.85	9022	A8II
			110532	62084			6.41	−0.14	667	K0/K1III	double star
	γ		108925				6.42			A3V	component of the γ Cru system
		T	107447	60259			6.58		4000	G2Ib	Cepheid variable,
		S	112044	62986			6.58		2300	F7Ib-II	Cepheid variable,
		R	107805	60455			6.90	0.94	508	F7Ib/II	Cepheid variable,
			108147	60644			6.99	4.05	126	F9V	Tupã; has a planet (b)
		AG	110258				7.90			F8Ib-II	Cepheid variable,
			106906	59960			7.8		300	F5V	has a planet (b)
		BH		59844			7.96		8200	SC4.5-7/8e	Mira variable,
		X	110945				8.10			G1Ib	Cepheid variable,
		W	105998	59483			8.44			G2Iab	β Lyr variable
		AB	106871	59935			8.48		3900	B2IVe	Algol variable
		AI		59026			9.68		2300	F7Ib-II	Algol variable
		BP					10.66			B1.2Ia	High-mass X-ray binary,
		DI	104994	58954			10.8	−2.25	13000	WN3p	Wolf–Rayet star,
		CD	311884				10.81		911	WN6o + O5V	Wolf–Rayet star,
							10.82		6500	KIII	has a planet
		BI					11.00			B+....	Symbiotic star,

See also

• List of star names in Crux
• List of stars by constellation
• Bandeira do Brasil: Sobre as estrelas (Portuguese)

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: SIMBAD Astronomical Database . Centre de Données astronomiques de Strasbourg . 2007-01-02 .
• Web site: Samus . N. N. . Durlevich. O. V.. etal . Combined General Catalogue of Variable Stars (GCVS4.2) . 2004 . 2007-01-03 .
• Web site: Gould . B. A. . Uranometria Argentina . Reprinted and updated by Pilcher, F . 2010-07-19 . dead . https://web.archive.org/web/20120227032716/http://www.uranometriaargentina.com/ . 2012-02-27 .
• Web site: AAVSO Website . American Association of Variable Star Observers . 9 March 2014 .
• Web site: Naming Stars . 13 December 2017 .

Notes and References

1. The Nearest OB Association: Scorpius–Centaurus (Sco OB2). Preibisch, T., Mamajek, E.. 2008. Handbook of Star-Forming Regions. 2. 0. 2008hsf2.book..235P. 0809.0407.
2. Web site: IAU Catalog of Star Names . . 2018-09-17.
3. A Hipparcos Census of Nearby OB Associations. de Zeeuw, P.T. . Hoogerwerf, R. . de Bruijne, J.H.J. . Brown, A.G.A. . Blaauw, A. . 1999. Astronomical Journal. 117. 1. 354–99. 1999AJ....117..354D. 10.1086/300682. astro-ph/9809227 . 16098861 .