kap CrB planetary system
kap CrB is an orange main-sequence star of spectral type K0 III-IV approximately 98.1 light-years from Earth (30.07 parsecs). It hosts 1 confirmed exoplanet.
Host star
- Name
- kap CrB
- Spectral type
- K0 III-IV
- Effective temperature
- 4,840 K
- Mass
- 1.33 M☉ (solar masses)
- Radius
- 4.68 R☉ (solar radii)
- Distance
- 30.07 pc (98.1 ly)
- Hipparcos catalog
- HIP 77655
Confirmed planets (1)
| Planet | Class | Mass (M⊕) | Radius (R⊕) | Period (d) | Distance (AU) | Eq. temp (K) | Discovered |
|---|---|---|---|---|---|---|---|
| kap CrB b | Neptune-like | 591.16 | 13.40 | 1253.68 | 2.5000 | — | 2007 |
The planets in detail
kap CrB b is a Neptune-like world with about 13.40 Earth radii and 591.16 Earth masses. It orbits kap CrB at 2.5000 AU with a 3.4-Earth-year orbit, and no published equilibrium temperature. It was confirmed in 2007 via radial velocity (Doppler) measurements.
Discovery
The single planet in the kap CrB system was confirmed in 2007 using radial velocity (Doppler) measurements. Detection facilities: Lick Observatory.
Observing from Earth
Exoplanets cannot be resolved visually with amateur telescopes — the host star's glare is overwhelming and even space-based direct imaging requires sophisticated coronagraphs. What you can observe is the host star itself at right ascension 237.8080°, declination 35.6559°. Use the 3D orrery above to inspect orbital geometry, planetary scale, and the habitable-zone overlay — the orbits are computed from the published Keplerian elements and animate at user-controlled time rates.
