Gamma Centauri

Database links to γ ​​Centauri

Double star γ Centauri
Observation dates equinox :  J2000.0 , epoch : J2000.0
AladinLite
Constellation	centaur
Right ascension	12 h 41 m 31.0 s
declination	-48 ° 57 ′ 36 ″
Apparent brightness	2.17 mag
Astrometry
Radial velocity	(−5.5) km / s
parallax	25.06 ± 0.28 mas
distance	130 ± 1 ly (39.9 ± 0.4 pc )
Proper movement :
Rec. Share:	(−185.7 ± 0.2) mas / a
Dec. portion:	(5.8 ± 0.2) mas / a
Individual data
Names	A; B.
Observation data:
Apparent brightness	A.	2.82 mag
	B.	2.88 mag
Typing:
Spectral class	A.	A1 IV
	B.	A0 IV
B − V color index	A.	0.02
	B.	0.03
Other names and catalog entries
Bayer name γ Centauri Cordoba Survey CD −48 ° 7597 Bright Star Catalog HR 4819 [1] Henry Draper Catalog HD 110304 [2] SAO catalog SAO 223603 [3] Hipparcos catalog HIP 61932 [4] Tycho catalog TYC 8240-2724-1 [5] TYC 8240-2724-2 [6] WDS catalog WDS J12415-4858

γ Centauri ( Gamma Centauri , γ Cen for short ) is a double star approx. 130 light-years away , which consists of two A0 / A1 stars each just under 3 mag bright. A telescope with an objective aperture of at least 15 centimeters is required to resolve the binary star system.

The double star bears the proper name Muhlifain (Arabic محلفين, DMG Muḥlifayn, "star on which one takes the oath"). He shares this proper name with γ Canis Majoris .

year	Angular distance	Position angle
1990	1.4 "	353 degrees
2000	1"	347 degrees
2005	0.7 "	341 degrees
2010	0.4 ″	324 degrees

See also

• List of the brightest stars

Web links

• http://stars.astro.illinois.edu/sow/muhlifain.html

Individual evidence

1. ↑ ^{a b c d e f} gam Cen. In: SIMBAD . Center de Données astronomiques de Strasbourg , accessed September 29, 2018 .