HD 200964 is 237 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this G8 IV star; the first was found in 2010 by radial velocity (Lick Observatory).
Fly there in 3DHD 200964 c takes 852.5 days to go round its star once.
| Spectral type | G8 IV |
| Surface temperature | 4,982 K |
| Mass | 1.39 solar masses |
| Radius | 4.92 solar radii |
| Luminosity | 11.59 times the Sun |
| Apparent magnitude | 6.48605 |
| Age | about 3 billion years |
| Distance from the Sun | 236.8 light-years (72.6 parsecs) |
| Position (J2000) | RA 316.6664°, Dec 3.8033° |
| Constellation | Equuleus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 200964 b | 606.3 days | 1.565 AU | 13.5 R⊕ estimated | 508.21 M⊕ minimum | Radial Velocity, 2010 |
| HD 200964 c | 852.5 days | 1.960 AU | 13.7 R⊕ estimated | 385.85 M⊕ minimum | Radial Velocity, 2010 |
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 4,982 K, 12 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 3.38 to 6.12 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 237 years ago, around 1790.