GJ 3634 is 66.5 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this M2.5 star; the first was found in 2010 by radial velocity (La Silla Observatory).
Fly there in 3DGJ 3634 b goes round its star every 2.65 days, 33 times as often as Mercury goes round the Sun.
| Spectral type | M2.5 |
| Surface temperature | 3,517 K |
| Mass | 0.45 solar masses |
| Radius | 0.43 solar radii |
| Luminosity | 0.02 times the Sun |
| Apparent magnitude | 11.938 |
| Age | about 5 billion years |
| Distance from the Sun | 66.5 light-years (20.4 parsecs) |
| Position (J2000) | RA 164.6433°, Dec -31.1443° |
| Constellation | Hydra |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| GJ 3634 b | 2.65 days | 0.0287 AU | 2.83 R⊕ estimated | 8.4 M⊕ | Radial Velocity, 2010 |
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.