gam Lib planetary system
gam Lib is an orange main-sequence star of spectral type K0 III approximately 155 light-years from Earth (47.40 parsecs). It hosts 2 confirmed exoplanets.
Host star
- Name
- gam Lib
- Spectral type
- K0 III
- Effective temperature
- 4,879 K
- Mass
- 1.78 M☉ (solar masses)
- Radius
- 12.38 R☉ (solar radii)
- Distance
- 47.40 pc (155 ly)
- Hipparcos catalog
- HIP 76333
Confirmed planets (2)
| Planet | Class | Mass (M⊕) | Radius (R⊕) | Period (d) | Distance (AU) | Eq. temp (K) | Discovered |
|---|---|---|---|---|---|---|---|
| gam Lib b | Neptune-like | 357.87 | 13.70 | 414.88 | 1.3190 | — | 2018 |
| gam Lib c | Neptune-like | 1662.56 | 12.80 | 966.49 | 2.3180 | — | 2018 |
The planets in detail
gam Lib b is a Neptune-like world with about 13.70 Earth radii and 357.87 Earth masses. It orbits gam Lib at 1.3190 AU with a 415-day year, and no published equilibrium temperature. It was confirmed in 2018 via radial velocity (Doppler) measurements.
gam Lib c is a Neptune-like world with about 12.80 Earth radii and 1662.56 Earth masses. It orbits gam Lib at 2.3180 AU with a 2.6-Earth-year orbit, and no published equilibrium temperature. It was confirmed in 2018 via radial velocity (Doppler) measurements.
Discovery
All 2 planets in the gam Lib system were detected in 2018 using radial velocity (Doppler) measurements. Detection facilities: Okayama Astrophysical 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 233.8819°, declination -14.7895°. 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.
