Beta Herculis

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Star
β Herculis (Kornephoros)
AladinLite
Observation
dates equinox :  J2000.0 , epoch : J2000.0
Constellation Hercules
Right ascension 16 h 30 m 13.2 s
declination + 21 ° 29 ′ 22.6 ″
Apparent brightness 2.78 likes
Typing
B − V color index +0.94 
U − B color index +0.69 
R − I index +0.47 
Spectral class G8 III
Astrometry
Radial velocity (−27.5 ± 0.2) km / s
parallax (23.44 ± 0.58)  mas
distance (139 ± 3)  ly
(42.7 ± 1.1)  pc  
Visual absolute brightness M vis −0.4 mag
Proper movement 
Rec. Share: (−99.15 ± 0.37)  mas / a
Dec. portion: (−15.39 ± 0.50)  mas / a
Physical Properties
Other names
and catalog entries
Bayer name β Herculis
Flamsteed name 27 Herculis
Bonn survey BD + 21 ° 2934
Bright Star Catalog HR 6148 [1]
Henry Draper Catalog HD 148856 [2]
Hipparcos catalog HIP 80816 [3]
SAO catalog SAO 84411 [4]
Tycho catalog TYC 1518-1442-1 [5]

β Herculis ( Beta Herculis ) is a star of the spectral class G8. With an apparent magnitude of 2.8 mag, it is the brightest star in the constellation Hercules . The distance from β Herculis is approximately 140  light years .

The star bears the historical proper name Kornephoros ("club bearer").

Individual evidence

  1. ↑ a b c Hipparcos catalog (ESA 1997)
  2. ↑ a b c Bright Star Catalog
  3. ↑ Pulkovo radial velocities for 35493 HIP stars
  4. ↑ a b c Hipparcos, the New Reduction (van Leeuwen, 2007)
  5. ↑ estimated from apparent brightness and distance