GJ 273 is 19.3 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this M3.5 star; the first was found in 2017 by radial velocity (La Silla Observatory).
Fly there in 3DGJ 273 c goes round its star every 4.72 days, 19 times as often as Mercury goes round the Sun.
| Spectral type | M3.5 |
| Surface temperature | 3,382 K |
| Mass | 0.29 solar masses |
| Radius | 0.293 solar radii |
| Luminosity | 0.0088 times the Sun |
| Apparent magnitude | 9.84 |
| Distance from the Sun | 19.3 light-years (5.9 parsecs) |
| Position (J2000) | RA 111.8521°, Dec 5.2258° |
| Constellation | Canis Minor |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| GJ 273 c | 4.72 days | 0.0365 AU | 1.06 R⊕ estimated | 1.18 M⊕ minimum | Radial Velocity, 2017 |
| GJ 273 b | 18.6 days | 0.0911 AU | 1.51 R⊕ estimated | 2.89 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.