GJ 1148 is 35.9 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this M5 star; the first was found in 2010 by radial velocity (W. M. Keck Observatory).
Fly there in 3DGJ 1148 b goes round its star every 41.4 days, 2.1 times as often as Mercury goes round the Sun.
| Spectral type | M5 |
| Surface temperature | 3,287 K |
| Mass | 0.344045 solar masses |
| Radius | 0.358519 solar radii |
| Luminosity | 0.01352 times the Sun |
| Apparent magnitude | 11.939 |
| Distance from the Sun | 35.9 light-years (11.0 parsecs) |
| Position (J2000) | RA 175.4326°, Dec 42.7516° |
| Constellation | Ursa Major |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| GJ 1148 b | 41.4 days | 0.166 AU | 11.9 R⊕ estimated | 96.7 M⊕ minimum | Radial Velocity, 2010 |
| GJ 1148 c | 532.6 days | 0.912 AU | 9.71 R⊕ estimated | 68.06 M⊕ minimum | Radial Velocity, 2017 |
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.