HD 94890 planetary system
HD 94890 is an orange main-sequence star of spectral type K0 III approximately 201 light-years from Earth (61.70 parsecs). It hosts 2 confirmed exoplanets.
Host star
- Name
- HD 94890
- Spectral type
- K0 III
- Effective temperature
- 4,867 K
- Mass
- 1.74 M☉ (solar masses)
- Radius
- 10.71 R☉ (solar radii)
- Distance
- 61.70 pc (201 ly)
- Hipparcos catalog
- HIP 53502
Confirmed planets (2)
| Planet | Class | Mass (M⊕) | Radius (R⊕) | Period (d) | Distance (AU) | Eq. temp (K) | Discovered |
|---|---|---|---|---|---|---|---|
| HD 94890 b | Neptune-like | 676.97 | 13.30 | 824.61 | 2.0700 | — | 2025 |
| HD 94890 c | Neptune-like | 2831.85 | 12.50 | 2492.19 | 4.3300 | — | 2025 |
The planets in detail
HD 94890 b is a Neptune-like world with about 13.30 Earth radii and 676.97 Earth masses. It orbits HD 94890 at 2.0700 AU with a 2.3-Earth-year orbit, and no published equilibrium temperature. Its orbit is notably eccentric (e = 0.22), meaning the distance to its star — and the irradiation it receives — varies substantially over each year. It was confirmed in 2025 via radial velocity (Doppler) measurements.
HD 94890 c is a Neptune-like world with about 12.50 Earth radii and 2831.85 Earth masses. It orbits HD 94890 at 4.3300 AU with a 6.8-Earth-year orbit, and no published equilibrium temperature. It was confirmed in 2025 via radial velocity (Doppler) measurements.
Discovery
All 2 planets in the HD 94890 system were detected in 2025 using radial velocity (Doppler) measurements. Detection facilities: La Silla 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 164.1798°, declination -37.1383°. 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.
