GJ 433 is 29.6 light-years from the Sun. The NASA Exoplanet Archive lists 3 planets around this M2V star; the first was found in 2013 by radial velocity (La Silla Observatory).
Fly there in 3DGJ 433 b goes round its star every 7.37 days, 12 times as often as Mercury goes round the Sun.
| Spectral type | M2V |
| Surface temperature | 3,461 K |
| Mass | 0.48 solar masses |
| Radius | 0.5 solar radii |
| Luminosity | 0.02 times the Sun |
| Apparent magnitude | 9.81 |
| Distance from the Sun | 29.6 light-years (9.1 parsecs) |
| Position (J2000) | RA 173.8619°, Dec -32.5436° |
| Constellation | Hydra |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| GJ 433 b | 7.37 days | 0.0620 AU | 2.33 R⊕ estimated | 6.043 M⊕ minimum | Radial Velocity, 2013 |
| GJ 433 d | 36.1 days | 0.178 AU | 2.14 R⊕ estimated | 5.223 M⊕ minimum | Radial Velocity, 2020 |
| GJ 433 c | 13.9 years | 4.819 AU | 6.27 R⊕ estimated | 32.422 M⊕ minimum | Radial Velocity, 2014 |
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.
For a star of 3,461 K, 0.020 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.15 to 0.29 AU. 1 of its 3 known planets orbits inside it. The zone says how much starlight arrives, not whether a planet has water or air. The edges follow Kopparapu et al. (2014), as the 3D view draws them.
The light you see left 30 years ago, within living memory.