HIP 105854 planetary system
HIP 105854 is an orange main-sequence star of spectral type K2 III approximately 256 light-years from Earth (78.64 parsecs). It hosts 1 confirmed exoplanet.
Host star
- Name
- HIP 105854
- Spectral type
- K2 III
- Effective temperature
- 4,780 K
- Mass
- 2.10 M☉ (solar masses)
- Radius
- 10.31 R☉ (solar radii)
- Distance
- 78.64 pc (256 ly)
- Hipparcos catalog
- HIP 105854
Confirmed planets (1)
| Planet | Class | Mass (M⊕) | Radius (R⊕) | Period (d) | Distance (AU) | Eq. temp (K) | Discovered |
|---|---|---|---|---|---|---|---|
| HIP 105854 b | Neptune-like | 2606.10 | 12.60 | 184.20 | 0.8100 | — | 2014 |
The planets in detail
HIP 105854 b is a Neptune-like world with about 12.60 Earth radii and 2606.10 Earth masses. It orbits HIP 105854 at 0.8100 AU with a 184-day year, and no published equilibrium temperature. It was confirmed in 2014 via radial velocity (Doppler) measurements.
Discovery
The single planet in the HIP 105854 system was confirmed in 2014 using radial velocity (Doppler) measurements. Detection facilities: Multiple Observatories.
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 321.5962°, declination -37.8295°. 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.
