Kappa Coronae Borealis

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Star
κ Coronae Borealis
AladinLite
Observation
dates equinoxJ2000.0 , epoch : J2000.0
Constellation Northern crown
Right ascension 15 h 51 m 13.9 s
declination + 35 ° 39 ′ 27 ″
Apparent brightness 4.79 likes
Typing
Known exoplanets 1
B − V color index +1.00 
U − B color index +0.87 
R − I index +0.49 
Spectral class K0 III-IV
Astrometry
Radial velocity (−25.2 ± 0.2) km / s
parallax (32.79 ± 0.21)  mas
distance (99.5 ± 0.6)  ly
(30.5 ± 0.2)  pc  
Proper movement 
Rec. Share: (−8.55 ± 0.18)  mas / a
Dec. portion: (−348.44 ± 0.24)  mas / a
Physical Properties
Dimensions 1.8  M
radius (4.71 ± 0.08)  R
Effective temperature 4960  K
Metallicity [Fe / H] +0.14
Age approx. 2.5 billion  a
Other names
and catalog entries
Bayer name κ Coronae Borealis
Flamsteed name 11 Coronae Borealis
Bonn survey BD + 36 ° 2652
Bright Star Catalog HR 5901 [1]
Henry Draper Catalog HD 142091 [2]
Hipparcos catalog HIP 77655 [3]
SAO catalog SAO 64948 [4]
Tycho catalog TYC 2578-1609-1 [5]Template: Infobox star / maintenance / specification of the TYC catalog
Other names FK5  1414

κ Coronae Borealis ( Kappa Coronae Borealis , κ CrB ) is a star in the constellation Corona Borealis . It has an apparent magnitude of 4.79 mag. In 2007 John Asher Johnson discovered an extrasolar planet orbiting this star: Kappa Coronae Borealis b .

Web links

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)