HD 112300 planetary system
HD 112300 is a cool red dwarf of spectral type M1 III approximately 202 light-years from Earth (62.07 parsecs). It hosts 1 confirmed exoplanet.
Host star
- Name
- HD 112300
- Spectral type
- M1 III
- Effective temperature
- 3,657 K
- Mass
- 1.40 M☉ (solar masses)
- Radius
- 65.80 R☉ (solar radii)
- Distance
- 62.07 pc (202 ly)
- Hipparcos catalog
- HIP 63090
Confirmed planets (1)
| Planet | Class | Mass (M⊕) | Radius (R⊕) | Period (d) | Distance (AU) | Eq. temp (K) | Discovered |
|---|---|---|---|---|---|---|---|
| HD 112300 b | Neptune-like | 5031.22 | 12.20 | 466.63 | 1.3300 | — | 2023 |
The planets in detail
HD 112300 b is a Neptune-like world with about 12.20 Earth radii and 5031.22 Earth masses. It orbits HD 112300 at 1.3300 AU with a 467-day year, and no published equilibrium temperature. Its orbit is notably eccentric (e = 0.36), 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 112300 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 193.8988°, declination 3.3972°. 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.
