HATS-77 is 1,423 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this 4,071 K star; the first was found in 2021 by transit (HATSouth).
Fly there in 3DHATS-77 b goes round its star every 3.09 days, 29 times as often as Mercury goes round the Sun.
| Surface temperature | 4,071 K |
| Mass | 0.655 solar masses |
| Radius | 0.6428 solar radii |
| Luminosity | 0.1019 times the Sun |
| Apparent magnitude | 16.195 |
| Age | about 12.1 billion years |
| Distance from the Sun | 1422.6 light-years (436.2 parsecs) |
| Position (J2000) | RA 149.8237°, Dec -27.3928° |
| Constellation | Antlia |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HATS-77 b | 3.09 days | 0.0361 AU | 13.058 R⊕ | 436.7 M⊕ | Transit, 2021 |
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.