gam1 Leo planetary system
gam1 Leo is an orange main-sequence star of spectral type K1 IIIb Fe-0.5 approximately 130 light-years from Earth (39.89 parsecs). It hosts 1 confirmed exoplanet.
Host star
- Name
- gam1 Leo
- Spectral type
- K1 IIIb Fe-0.5
- Effective temperature
- 4,330 K
- Mass
- 1.23 M☉ (solar masses)
- Radius
- 31.88 R☉ (solar radii)
- Distance
- 39.89 pc (130 ly)
- Hipparcos catalog
- HIP 50583
Confirmed planets (1)
| Planet | Class | Mass (M⊕) | Radius (R⊕) | Period (d) | Distance (AU) | Eq. temp (K) | Discovered |
|---|---|---|---|---|---|---|---|
| gam1 Leo b | Neptune-like | 2790.43 | 12.50 | 428.50 | 1.1900 | — | 2009 |
The planets in detail
gam1 Leo b is a Neptune-like world with about 12.50 Earth radii and 2790.43 Earth masses. It orbits gam1 Leo at 1.1900 AU with a 428-day year, and no published equilibrium temperature. It was confirmed in 2009 via radial velocity (Doppler) measurements.
Discovery
The single planet in the gam1 Leo system was confirmed in 2009 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 154.9932°, declination 19.8414°. 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.
