HD 133131 A is 168 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this G2 V star; the first was found in 2016 by radial velocity (Las Campanas Observatory).
Fly there in 3DHD 133131 A c takes 9.8 years to go round its star once.
HD 133131 A is one of 2 stars in its system. The position of the other star is not catalogued, so only HD 133131 A and its planets are drawn.
| Spectral type | G2 V |
| Surface temperature | 5,799 K |
| Mass | 0.95 solar masses |
| Radius | 0.955014 solar radii |
| Luminosity | 0.9625 times the Sun |
| Apparent magnitude | 7.66 |
| Age | about 9.7 billion years |
| Distance from the Sun | 167.9 light-years (51.5 parsecs) |
| Position (J2000) | RA 225.8985°, Dec -27.8431° |
| Constellation | Libra |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 133131 A b | 649.0 days | 1.440 AU | 13.6 R⊕ estimated | 451.32 M⊕ minimum | Radial Velocity, 2016 |
| HD 133131 A c | 9.8 years | 4.490 AU | 14.3 R⊕ estimated | 133.49 M⊕ minimum | Radial Velocity, 2016 |
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.