HD 160691 is 50.9 light-years from the Sun. The NASA Exoplanet Archive lists 4 planets around this G3 IV-V star; the first was found in 2000 by radial velocity (Anglo-Australian Telescope).
Fly there in 3DHD 160691 d goes round its star every 9.64 days, 9 times as often as Mercury goes round the Sun.
| Spectral type | G3 IV-V |
| Surface temperature | 5,773 K |
| Mass | 1.13 solar masses |
| Radius | 1.33 solar radii |
| Luminosity | 1.899 times the Sun |
| Apparent magnitude | 5.12 |
| Age | about 5.7 billion years |
| Distance from the Sun | 50.9 light-years (15.6 parsecs) |
| Position (J2000) | RA 266.0362°, Dec -51.8349° |
| Constellation | Ara |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 160691 d | 9.64 days | 0.0952 AU | 3.23 R⊕ estimated | 10.49 M⊕ minimum | Radial Velocity, 2004 |
| HD 160691 e | 307.9 days | 0.960 AU | — | 2224.8 M⊕ | Radial Velocity, 2006 |
| HD 160691 b | 645.0 days | 1.500 AU | — | 1366.7 M⊕ | Radial Velocity, 2000 |
| HD 160691 c | 10.8 years | 4.170 AU | — | 1398.4 M⊕ | Radial Velocity, 2004 |
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 5,773 K, 1.9 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 1.31 to 2.31 AU. 1 of its 4 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 51 years ago, within living memory.