Alpha Comae Berenices

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Double star
α Comae Berenices
Observation
dates equinoxJ2000.0 , epoch : J2000.0
AladinLite
Constellation Berenike's hair
Right ascension 13 h 09 m 59 s
declination + 17 ° 31 ′ 46 ″
Apparent brightness  4.3 likes
Astrometry
Radial velocity (−17.7 ± 0.9) km / s
distance  approx. 60 ly
Individual data
Names A; B.
Typing:
Spectral class A. F5 V
B. F5 V
Other names
and catalog entries
Bayer name α Comae Berenices
Flamsteed name 42 Comae Berenices
Bonn survey BD + 18 ° 2697
SAO catalog SAO 100443 [1]
Tycho catalog TYC 1454-1134-1 [2]
Hipparcos catalog HIP 64241 [3]
Bright Star Catalog HR 4968 HR 4969
Henry Draper Catalog HD 114378 HD 114379
WDS catalog WDS 13100 + 1732
Further designations: Σ 1728 • Gliese 501

α Comae Berenices ( Alpha Comae Berenices , α Com ) is a star in the constellation Haar der Berenice . He bears the historical proper name Diadem .

Alpha Comae Berenices is a binary star consisting of two main sequence stars of the spectral class F5 with a common apparent magnitude of 4.3 mag. The star system is about 60 light years from the sun .