List of stars in Crux - 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....

Crux
Crux
Crux is the smallest of the 88 modern constellations, but is one of the most distinctive. Its name is Latin for cross, and it is dominated by a cross-shaped asterism that is commonly known as the Southern Cross.-Visibility:...

, 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...	G. Gould designation Gould designations for stars are similar to Flamsteed designations in the way that they number stars within a constellation in increasing order of right ascension. Each star is assigned an integer , followed by " G. " , and then 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
β Cru Beta Crucis Mimosa or Becrux is the second brightest star in the constellation Crux and is one of the brightest stars in the night sky....	β	46	111123	62434	1.25	−3.92	352	B0.5III	Mimosa, Becrux; 20th brightest star; β Cep variable Beta Cephei variable Beta Cephei variables are variable stars which exhibit variations in their brightness due to pulsations of the stars' surfaces. The point of maximum brightness roughly corresponds to the maximum contraction of the star. Typically, Beta Cephei variables change in brightness by 0.01 to 0.3... ,
α¹ Cru Alpha Crucis Acrux is the brightest star in the constellation Crux, the Southern Cross, and, at a combined visual magnitude 0.77, is the twelfth brightest star in the night sky... (α Cru A)	α¹	26	108248	60718	1.4	−3.6	321	B0.5IV	Acrux, 23rd brightest star, multiple star Star system A star system or stellar system is a small number of stars which orbit each other, bound by gravitational attraction. A large number of stars bound by gravitation is generally called a star cluster or galaxy, although, broadly speaking, they are also star systems.-Binary star systems:A stellar... , spectroscopic binary
γ Cru A Gamma Crucis Gamma Crucis , often called Gacrux, is a red giant star approximately 88 light-years away in the constellation of Crux. Among Portuguese-speaking peoples it is also named "Rubídea" , in reference to its color. The star is the third-brightest star in Crux and one of the brightest stars in the...	γ	34	108903	61084	1.59	−0.56	88	M4III	Gacrux, triple star Star system A star system or stellar system is a small number of stars which orbit each other, bound by gravitational attraction. A large number of stars bound by gravitation is generally called a star cluster or galaxy, although, broadly speaking, they are also star systems.-Binary star systems:A stellar... , suspected variable 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...
α² Cru Alpha Crucis Acrux is the brightest star in the constellation Crux, the Southern Cross, and, at a combined visual magnitude 0.77, is the twelfth brightest star in the night sky... (α Cru B)	α²	27	108249		2.09	−2.88	321	B1V	component of the α Cru system
δ Cru	δ	18	106490	59747	2.79	−2.45	364	B2IV	β Cep variable;
ε Cru	ε	22	107446	60260	3.59	−0.63	228	K3/K4III	suspected variable
μ¹ Cru Mu Crucis Mu Crucis the 7th brightest starin the constellation Crux, or Southern Cross. It is awide binary of spectral class B stars, each of magnitude 4.0 and 5.1. They lie about 360−380 light years away....	μ¹	52	112092	63003	4.03	−1.29	377	B2IV-V	binary star Binary star A binary star is a star system consisting of two stars orbiting around their common center of mass. The brighter star is called the primary and the other is its companion star, comes, or secondary...
ζ Cru Zeta Crucis ζ Crucis is a binary star in the constellation Crux. It has an apparent magnitude of 4.06m. The primary star is classified as a blue-white dwarf . The secondary component is much fainter, with an apparent magnitude of 12.49. ζ Crucis is located at about 360 light-years from the Sun....	ζ	19	106983	60009	4.06	−1.16	361	B2.5V	double star Double star In observational astronomy, a double star is a pair of stars that appear close to each other in the sky as seen from Earth when viewed through an optical telescope. This can happen either because the pair forms a binary star, i.e...
η Cru Eta Crucis η Crucis is a star in the constellation Crux. It has an apparent magnitude of 4.14m. The star is classified as a yellow-white giant . η Crucis is located at 64 light-years from the Sun....	η	10	105211	59072	4.14	2.67	64	F2III	double star
θ¹ Cru Theta1 Crucis θ1 Crucis is a spectroscopic binary star in the constellation Crux. It has an apparent magnitude of 4.32m. The spectral class of the star is Am. θ1 Crucis is located at 230 light-years from the Sun....	θ¹	6	104671	58758	4.32	0.08	230	Am	spectroscopic binary
		45	110956	62327	4.62	−0.80	396	B3V	double star
λ Cru Lambda Crucis Lambda Crucis is a star in theconstellation Crux. The star is classified as a blue-white dwarf . The apparent magnitude of λ Crucis is 4.6, but it is not stable. The star is a...	λ	51	112078	63007	4.62	−0.59	360	B4Vn	β Cep variable,
ι Cru Iota Crucis Iota Crucis is a star in the constellation Crux. It has an apparent magnitude of 4.69m. The star is classified as an orange giant . Iota Crucis is located at 125 light-years from the Sun....	ι	44	110829	62268	4.69	1.78	125	K1III	optical double Double star In observational astronomy, a double star is a pair of stars that appear close to each other in the sky as seen from Earth when viewed through an optical telescope. This can happen either because the pair forms a binary star, i.e...
θ² Cru Theta2 Crucis θ2 Crucis is a spectroscopic binary star in the constellation Crux. This pair of stars complete an orbit every 3.4280 days and they have a low orbital eccentricity that is close to 0.0. θ2 Crucis is located at about 750 light-years from the Sun.The system has a combined mean apparent magnitude of...	θ²	7	104841	58867	4.72	−2.10	753	B2IV	spectroscopic binary; β Cep variable,
α Cru Alpha Crucis Acrux is the brightest star in the constellation Crux, the Southern Cross, and, at a combined visual magnitude 0.77, is the twelfth brightest star in the night sky... C		25	108250		4.86			B4IV	25G. Cru; probable optical double with the α Cru system
CH Cru ( 39 G. Cru)		39	110335	61966	4.91	−2.60	1035	B6IV	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...
μ² Cru Mu Crucis Mu Crucis the 7th brightest starin the constellation Crux, or Southern Cross. It is awide binary of spectral class B stars, each of magnitude 4.0 and 5.1. They lie about 360−380 light years away....	μ²	53	112091	63005	5.08	−0.14	361	B5Vne	component of μ Cru system; γ Cas variable,
BZ Cru BZ Crucis BZ Crucis is a Be star in the constellation Crux, behind the southern Coalsack Nebula. It has a stellar classification of B1IVe, which means it is a...		40	110432	62027	5.27	−2.12	982	B2pe	high-mass X-ray binary X-ray binary X-ray binaries are a class of binary stars that are luminous in X-rays.The X-rays are produced by matter falling from one component, called the donor to the other component, called the accretor, which is compact: a white dwarf, neutron star, or black hole.The infalling matter releases... ; γ Cas variable,
		54	112244	63117	5.34	−3.47	1884	O9Ib	emission-line star
		24	107696	60379	5.38	0.28	342	B9V
BL Cru		29	108396	60781	5.38	−0.82	566	M4/M5III	semiregular variable,
		2	103961	58379	5.44	−1.00	633	B8III	suspected variable
BG Cru		35	108968	61136	5.49	−3.07	1680	F5Ib-G0p	35G. Cru; Cepheid variable Cepheid variable A Cepheid is a member of a class of very luminous variable stars. The strong direct relationship between a Cepheid variable's luminosity and pulsation period, secures for Cepheids their status as important standard candles for establishing the Galactic and extragalactic distance scales.Cepheid... ,
		1	103884	58326	5.59	−0.73	598	B3V	suspected variable
		3	104035	58427	5.59	−4.11	2835	A3Ib
DS Cru		47	111613	62732	5.71	−4.10	2991	A2Iab	emission-line star; α Cyg variable Alpha Cygni variable Alpha Cygni variables are variable stars which exhibit non-radial pulsations, meaning that some portions of the stellar surface are contracting at the same time others parts expand. They are supergiant stars of spectral types B or A... ,
		48	111904	62894	5.75	−4.71	4025	B9Ia	suspected variable
		33	108732	60969	5.78	−0.40	562	M1III	suspected variable
κ Cru HD 111973 κ Cru is a star in star cluster NGC 4755...	κ	50	111973	62931	5.98	−2.55	1661	B5Ia	member of the Jewel Box star cluster Star cluster Star clusters or star clouds are groups of stars. Two types of star clusters can be distinguished: globular clusters are tight groups of hundreds of thousands of very old stars which are gravitationally bound, while open clusters, more loosely clustered groups of stars, generally contain less than... (note that κ Cru usually refers to the cluster itself)
		15	106068	59517	5.91	−4.96	4866	B9Ia
		23	107543	60308	5.91	−2.73	1743	K4III + (F)
		9	104933	58921	5.95	−0.59	661	M2III	suspected variable
		36	109000	61158	5.96	1.62	240	A8III
		42	110506	62058	5.99	0.47	414	B9Vn
		28	108355	60771	6.02	−0.50	657	B8IV
		30	108501	60851	6.05	1.11	317	A0Vn
		41	110461	62026	6.06	0.77	372	B9V
		13	105841	59396	6.08	1.34	290	F0III
		32	108570	60870	6.15	3.02	138	K0/K1III
		5	104430	58642	6.16	1.28	309	A1V
DL Cru DL Crucis DL Crucis is a variable star in the constellation Crux.-References:*...		17	106343	59678	6.20	6.30	~20000	B1.5Ia	α Cyg variable;
		31	108530	60861	6.21	0.31	494	K2III
		11	105437	59200	6.22	−2.89	2159	K3/K4II
		38	109492	61443	6.22	2.89	151	G4IV
		8	104900	58901	6.30	1.12	354	B9Vn
			108395	60780	6.35	−0.79	874	K4III
		4	104111	58469	6.36	−5.85	9022	A8II
		43	110532	62084	6.41	−0.14	667	K0/K1III	double star
γ Cru B Gamma Crucis Gamma Crucis , often called Gacrux, is a red giant star approximately 88 light-years away in the constellation of Crux. Among Portuguese-speaking peoples it is also named "Rubídea" , in reference to its color. The star is the third-brightest star in Crux and one of the brightest stars in the...	γ		108925		6.42			A3V	component of the γ Cru system
R Cru			107805	60455	6.90	0.94	508	F7Ib/II	Cepheid variable,
HD 108147 HD 108147 HD 108147 is a 7th magnitude star in the constellation of Crux in direct line with and very near to the bright star Acrux or Alpha Crucis. It is either a yellow-white or yellow dwarf , slightly brighter and more massive than our Sun. The spectral type is F8 V or G0 V...			108147	60644	6.99	4.05	126	F9V	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 108147 b HD 108147 b is a gas giant exoplanet with a minimum mass about half that of Jupiter. It orbits the star in a very tight "torch orbit". The distance between the planet and the star is only a tenth of the distance between Earth and the Sun . A number of such worlds are known to exist, but the... )

See also