HD 33564 planetary system
HD 33564 is a yellow-white main-sequence star of spectral type F6 V approximately 68.3 light-years from Earth (20.95 parsecs). It hosts 1 confirmed exoplanet.
Host star
- Name
- HD 33564
- Spectral type
- F6 V
- Effective temperature
- 6,250 K
- Mass
- 1.25 M☉ (solar masses)
- Radius
- 1.44 R☉ (solar radii)
- Distance
- 20.95 pc (68.3 ly)
- Hipparcos catalog
- HIP 25110
Confirmed planets (1)
| Planet | Class | Mass (M⊕) | Radius (R⊕) | Period (d) | Distance (AU) | Eq. temp (K) | Discovered |
|---|---|---|---|---|---|---|---|
| HD 33564 b | Neptune-like | 2892.10 | 12.50 | 388.00 | 1.1000 | — | 2005 |
The planets in detail
HD 33564 b is a Neptune-like world with about 12.50 Earth radii and 2892.10 Earth masses. It orbits HD 33564 at 1.1000 AU with a 388-day year, and no published equilibrium temperature. Its orbit is notably eccentric (e = 0.34), meaning the distance to its star — and the irradiation it receives — varies substantially over each year. It was confirmed in 2005 via radial velocity (Doppler) measurements.
Discovery
The single planet in the HD 33564 system was confirmed in 2005 using radial velocity (Doppler) measurements. Detection facilities: Haute-Provence 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 80.6379°, declination 79.2318°. 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.
