HIP 79431 is 47.4 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this M3 V star; the first was found in 2009 by radial velocity (W. M. Keck Observatory).
Fly there in 3DHIP 79431 b takes 111.7 days to go round its star once.
| Spectral type | M3 V |
| Surface temperature | 3,191 K |
| Mass | 0.49 solar masses |
| Radius | 0.478625 solar radii |
| Luminosity | 0.02824 times the Sun |
| Apparent magnitude | 11.394 |
| Distance from the Sun | 47.4 light-years (14.5 parsecs) |
| Position (J2000) | RA 243.1742°, Dec -18.8764° |
| Constellation | Scorpius |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HIP 79431 b | 111.7 days | 0.360 AU | 13.4 R⊕ estimated | 667.41 M⊕ minimum | Radial Velocity, 2009 |
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 3,191 K, 0.028 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.17 to 0.34 AU. None of its 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 47 years ago, within living memory.