Betria

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Double star
Betria (β Trianguli Australis)
AladinLite
Observation
dates equinoxJ2000.0 , epoch : J2000.0
Constellation Southern triangle
Right ascension 15 h 55 m 8.56 s
declination -63 ° 25 ′ 50.7 ″
Apparent brightness 2.85 mag
Typing
B − V color index (0.29) 
U − B color index (0.05) 
R − I index (0.15) 
Spectral class F1 V
Astrometry
parallax (79.43 ± 0.58)  mas
distance (41.0 ± 0.3)  ly
(12.6)  pc
Proper movement 
Rec. Share: (−186.84 ± 0.92)  mas / a
Dec. portion: (−398.92 ± 1.02)  mas / a
Physical Properties
Other names
and catalog entries
Bayer name β Trianguli Australis
Cordoba Survey CD −63 ° 1135
Bright Star Catalog HR 5897 [1]
Henry Draper Catalog HD 141891 [2]
Hipparcos catalog HIP 77952 [3]
SAO catalog SAO 253346 [4]
Tycho catalog TYC 9027-5712-1 [5]
2MASS catalog 2MASS J15550857-6325507 [6]
Other names WDS J15551-6326

Betria is the proper name of the double star β Trianguli Australis . The name is an artificial word from the naming of the star Be ta Tri anguli A ustralis. Betria belongs to the spectral class F0 and has a brightness of +2.85 mag. Betria is 41 light years from Earth.

Individual evidence

  1. a b c d e f g h bet TrA. In: SIMBAD . Center de Données astronomiques de Strasbourg , accessed September 15, 2018 .