HD 13808 is 92.1 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this K2 V star; the first was found in 2021 by radial velocity (La Silla Observatory).
Fly there in 3DHD 13808 b goes round its star every 14.2 days, 6 times as often as Mercury goes round the Sun.
| Spectral type | K2 V |
| Surface temperature | 5,035 K |
| Mass | 0.771 solar masses |
| Radius | 0.781 solar radii |
| Luminosity | 0.3677 times the Sun |
| Apparent magnitude | 8.36 |
| Age | about 7.2 billion years |
| Distance from the Sun | 92.1 light-years (28.2 parsecs) |
| Position (J2000) | RA 33.1781°, Dec -53.7438° |
| Constellation | Eridanus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 13808 b | 14.2 days | 0.105 AU | 3.35 R⊕ estimated | 11.2 M⊕ minimum | Radial Velocity, 2021 |
| HD 13808 c | 53.8 days | 0.255 AU | 3.13 R⊕ estimated | 9.96 M⊕ minimum | Radial Velocity, 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.
For a star of 5,035 K, 0.37 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.60 to 1.09 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 92 years ago, within living memory.