HD 6860 planetary system
HD 6860 is a cool red dwarf of spectral type M0 III approximately 199 light-years from Earth (61.12 parsecs). It hosts 1 confirmed exoplanet.
Host star
- Name
- HD 6860
- Spectral type
- M0 III
- Effective temperature
- 3,802 K
- Mass
- 2.49 M☉ (solar masses)
- Radius
- 86.40 R☉ (solar radii)
- Distance
- 61.12 pc (199 ly)
- Hipparcos catalog
- HIP 5447
Confirmed planets (1)
| Planet | Class | Mass (M⊕) | Radius (R⊕) | Period (d) | Distance (AU) | Eq. temp (K) | Discovered |
|---|---|---|---|---|---|---|---|
| HD 6860 b | Neptune-like | 8981.83 | 11.90 | 663.87 | 2.0300 | — | 2023 |
The planets in detail
HD 6860 b is a Neptune-like world with about 11.90 Earth radii and 8981.83 Earth masses. It orbits HD 6860 at 2.0300 AU with a 664-day year, and no published equilibrium temperature. Its orbit is notably eccentric (e = 0.28), meaning the distance to its star — and the irradiation it receives — varies substantially over each year. It was confirmed in 2023 via radial velocity (Doppler) measurements.
Discovery
The single planet in the HD 6860 system was confirmed in 2023 using radial velocity (Doppler) measurements. Detection facilities: Bohyunsan Optical Astronomical 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 17.4330°, declination 35.6205°. 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.
