HD 16417 planetary system
HD 16417 is a Sun-like main-sequence star of spectral type G1 V approximately 82.8 light-years from Earth (25.39 parsecs). It hosts 1 confirmed exoplanet.
Host star
- Name
- HD 16417
- Spectral type
- G1 V
- Effective temperature
- 5,841 K
- Mass
- 1.20 M☉ (solar masses)
- Radius
- 1.64 R☉ (solar radii)
- Distance
- 25.39 pc (82.8 ly)
- Hipparcos catalog
- HIP 12186
Confirmed planets (1)
| Planet | Class | Mass (M⊕) | Radius (R⊕) | Period (d) | Distance (AU) | Eq. temp (K) | Discovered |
|---|---|---|---|---|---|---|---|
| HD 16417 b | Mini-Neptune | 22.10 | 5.00 | 17.24 | 0.1400 | — | 2008 |
The planets in detail
HD 16417 b is a Mini-Neptune with about 5.00 Earth radii and 22.10 Earth masses. It orbits HD 16417 at 0.1400 AU with a 17.2-day year, and no published equilibrium temperature. It was confirmed in 2008 via radial velocity (Doppler) measurements.
Discovery
The single planet in the HD 16417 system was confirmed in 2008 using radial velocity (Doppler) measurements. Detection facilities: Anglo-Australian Telescope.
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 39.2441°, declination -34.5791°. 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.
