HD 113996 planetary system
HD 113996 is an orange main-sequence star of spectral type K5 III approximately 379 light-years from Earth (116.33 parsecs). It hosts 1 confirmed exoplanet.
Host star
- Name
- HD 113996
- Spectral type
- K5 III
- Effective temperature
- 4,181 K
- Mass
- 1.49 M☉ (solar masses)
- Radius
- 25.11 R☉ (solar radii)
- Distance
- 116.33 pc (379 ly)
- Hipparcos catalog
- HIP 64022
Confirmed planets (1)
| Planet | Class | Mass (M⊕) | Radius (R⊕) | Period (d) | Distance (AU) | Eq. temp (K) | Discovered |
|---|---|---|---|---|---|---|---|
| HD 113996 b | Neptune-like | 2002.33 | 12.70 | 610.20 | 1.6000 | — | 2017 |
The planets in detail
HD 113996 b is a Neptune-like world with about 12.70 Earth radii and 2002.33 Earth masses. It orbits HD 113996 at 1.6000 AU with a 610-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 2017 via radial velocity (Doppler) measurements.
Discovery
The single planet in the HD 113996 system was confirmed in 2017 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 196.7949°, declination 27.6244°. 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.
