Kappa Coronae Borealis b

Kappa Coronae Borealis b
Discovery[1]
Discovered byJohnson et al.
Discovery siteLick Observatory
Discovery date2007
Doppler spectroscopy
Orbital characteristics[2]
2.65±0.13 AU
Eccentricity0.167±0.032
1285±14 d
2456830±51 JD
194±14 º
Semi-amplitude26.18±0.86 m/s
StarKappa Coronae Borealis
Physical characteristics[2]
Mass≥1.811±0.057 MJ

Kappa Coronae Borealis b is an extrasolar planet approximately 98 light-years away[3] in the constellation of Corona Borealis. This planet was discovered by Johnson et al., who used the radial velocity method to detect wobbling of the star caused by a planet move around by its tug of gravity. It was first discovered in September 2007 and was published in November.[1]

The planet is 1.8 Jupiter masses, or 570 Earth masses, although only the minimum mass is known since the inclination is not known. It orbits at a distance of 2.7 astronomical units, or 400 gigameters, and takes 1,208 days, or 3.307 years, to orbit around Kappa Coronae Borealis.

  1. ^ a b Cite error: The named reference Johnson2008 was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference Luhn2019 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference Gaia DR2 was invoked but never defined (see the help page).