GJ 3512 is 30.9 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this M5.5 V star; the first was found in 2019 by radial velocity (Calar Alto Observatory).
Fly there in 3DGJ 3512 c takes 6.4 years to go round its star once.
| Spectral type | M5.5 V |
| Surface temperature | 3,141 K |
| Mass | 0.123 solar masses |
| Radius | 0.139 solar radii |
| Luminosity | 0.00157 times the Sun |
| Apparent magnitude | 15.18 |
| Age | about 5.5 billion years |
| Distance from the Sun | 30.9 light-years (9.5 parsecs) |
| Position (J2000) | RA 130.3317°, Dec 59.4918° |
| Constellation | Ursa Major |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| GJ 3512 b | 203.1 days | 0.338 AU | 14.3 R⊕ estimated | 146.52 M⊕ minimum | Radial Velocity, 2019 |
| GJ 3512 c | 6.4 years | 1.731 AU | 14.3 R⊕ estimated | 143.98 M⊕ minimum | Radial Velocity, 2020 |
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.