gam Lib is 155 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this K0 III star; the first was found in 2018 by radial velocity (Okayama Astrophysical Observatory).
Fly there in 3Dgam Lib c takes 966.5 days to go round its star once.
| Spectral type | K0 III |
| Surface temperature | 4,879 K |
| Mass | 1.78 solar masses |
| Radius | 12.38 solar radii |
| Luminosity | 78.94 times the Sun |
| Apparent magnitude | 3.90672 |
| Age | about 2.82 billion years |
| Distance from the Sun | 154.6 light-years (47.4 parsecs) |
| Position (J2000) | RA 233.8819°, Dec -14.7895° |
| Constellation | Libra |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| gam Lib b | 414.9 days | 1.319 AU | 13.7 R⊕ estimated | 357.87 M⊕ minimum | Radial Velocity, 2018 |
| gam Lib c | 966.5 days | 2.318 AU | 12.8 R⊕ estimated | 1662.6 M⊕ minimum | Radial Velocity, 2018 |
Values are the NASA Exoplanet Archive’s composite parameters. A radius marked estimated comes from a mass–radius relation; a mass marked minimum is M sin i. Planet sizes and colours in the 3D view are renderings: none of these worlds has been photographed as more than a point of light.
For a star of 4,879 K, 79 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 8.86 to 16.12 AU. None of its known planets orbits inside it. The zone says how much starlight arrives, not whether a planet has water or air. The edges follow Kopparapu et al. (2014), as the 3D view draws them.
The light you see left 155 years ago, around 1870.