LTT 9779 is 262 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this G7 V star; the first was found in 2020 by transit (Transiting Exoplanet Survey Satellite (TESS)).
Fly there in 3DLTT 9779 b goes round its star every 19.0 hours, 111 times as often as Mercury goes round the Sun.
| Spectral type | G7 V |
| Surface temperature | 5,443 K |
| Mass | 1.02 solar masses |
| Radius | 0.949 solar radii |
| Luminosity | 0.68 times the Sun |
| Apparent magnitude | 9.79 |
| Age | about 2 billion years |
| Distance from the Sun | 262.4 light-years (80.4 parsecs) |
| Position (J2000) | RA 358.6689°, Dec -37.6282° |
| Constellation | Sculptor |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| LTT 9779 b | 19.0 hours | 0.0168 AU | 4.72 R⊕ | 29.32 M⊕ | Transit, 2020 |
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 5,443 K, 0.68 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.80 to 1.42 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 262 years ago, around 1760.