HATS-31 is 2,524 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this 6,050 K star; the first was found in 2016 by transit (HATSouth).
Fly there in 3DHATS-31 b goes round its star every 3.38 days, 26 times as often as Mercury goes round the Sun.
| Surface temperature | 6,050 K |
| Mass | 1.275 solar masses |
| Radius | 1.87 solar radii |
| Luminosity | 4.16 times the Sun |
| Apparent magnitude | 13.315 |
| Age | about 4.3 billion years |
| Distance from the Sun | 2524.4 light-years (774.0 parsecs) |
| Position (J2000) | RA 191.7028°, Dec -24.4274° |
| Constellation | Hydra |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HATS-31 b | 3.38 days | 0.0478 AU | 18.383 R⊕ | 279.69 M⊕ | Transit, 2016 |
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 6,050 K, 4.2 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 1.91 to 3.34 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 2,524 years ago, around 500 BC.