Rho Coronae Borealis

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Star
ρ Coronae Borealis
AladinLite
Observation
dates equinoxJ2000.0 , epoch : J2000.0
Constellation Northern crown
Right ascension 16 h 01 m 2.7 s
declination + 33 ° 18 ′ 13 ″
Apparent brightness 5.39 likes
Typing
Known exoplanets 1
B − V color index +0.60 
U − B color index +0.08 
R − I index +0.32 
Spectral class G2 V
Astrometry
Radial velocity (17.9 ± 0.1) km / s
parallax (58.02 ± 0.28)  mas
distance (56.21 ± 0.27)  ly
(17.24 ± 0.08)  pc  
Proper movement 
Rec. Share: (−196.63 ± 0.24)  mas / a
Dec. portion: (−773.02 ± 0.21)  mas / a
Physical Properties
Dimensions 0.99  M
radius (1.28 ± 0.08)  R
Luminosity

1.8  L

Effective temperature 5822  K
Metallicity [Fe / H] −0.24
Age approx. 9 bill.  a
Other names
and catalog entries
Bayer name ρ Coronae Borealis
Flamsteed name 15 Coronae Borealis
Bonn survey BD + 33 ° 2663
Bright Star Catalog HR 5968 [1]
Henry Draper Catalog HD 143761 [2]
Gliese catalog GJ 9537 [3]
Hipparcos catalog HIP 78459 [4]
SAO catalog SAO 65024 [5]
Tycho catalog TYC 2576-2228-1 [6]Template: Infobox star / maintenance / specification of the TYC catalog
Other names LHS 3145

ρ Coronae Borealis ( Rho Coronae Borealis , ρ CrB ) is a G main sequence star in the constellation Corona Borealis, about 56 light years away . It has an apparent magnitude of 5.4 mag. In 1997 Robert W. Noyes discovered an extrasolar planet orbiting this star: Rho 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)