HD 159868 is 182 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this G5 V star; the first was found in 2006 by radial velocity (Anglo-Australian Telescope).
Fly there in 3DHD 159868 b takes 3.2 years to go round its star once.
| Spectral type | G5 V |
| Surface temperature | 5,534 K |
| Mass | 1.19 solar masses |
| Radius | 2.13 solar radii |
| Luminosity | 3.595 times the Sun |
| Apparent magnitude | 7.24 |
| Age | about 7.57 billion years |
| Distance from the Sun | 182.2 light-years (55.9 parsecs) |
| Position (J2000) | RA 264.7467°, Dec -43.1462° |
| Constellation | Scorpius |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 159868 c | 351.0 days | 1.032 AU | 14 R⊕ estimated | 244.09 M⊕ minimum | Radial Velocity, 2012 |
| HD 159868 b | 3.2 years | 2.320 AU | 13.3 R⊕ estimated | 704.95 M⊕ minimum | Radial Velocity, 2006 |
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 5,534 K, 3.6 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 1.83 to 3.25 AU. 1 of its 2 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 182 years ago, around 1840.