Alpha Sagittarii

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Star
α Sagittarii
AladinLite
Observation
dates equinoxJ2000.0 , epoch : J2000.0
Constellation Sagittarius
Right ascension 19 h 23 m 53.2 s
declination -40 ° 36 ′ 58 ″
Apparent brightness 3.96 likes
Typing
Spectral class B8 V
Astrometry
distance 170  ly
Physical Properties
Other names
and catalog entries
Bayer name α Sagittarii
Cordoba Survey CD-40 13 245
Bright Star Catalog HR 7348 [1]
Henry Draper Catalog HD 181869 [2]
Hipparcos catalog HIP 95347 [3]
SAO catalog SAO 229659 [4]
Other names FK5 728, CP -40 8955

Alpha Sagittarii (α Sagittarii / α Sgr) is a main sequence star in Sagittarius . Alpha Sagittarii has an apparent magnitude of +3.96 mag and belongs to the spectral class B8. Alpha Sagittarii is 170  light years away and has a surface temperature of about 12,000 Kelvin .

He bears the historical proper name Rukbat al Rami or Rukbat from Arabic ركبة الرامي , rukbat al-rāmī , "knees of the shooter".

Individual evidence

  1. a b c Hipparcos catalog (ESA 1997)