nu Oct A is 69.1 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this K1 IV star; the first was found in 2016 by radial velocity (University of Canterbury Mt John Observatory).
Fly there in 3Dnu Oct A b takes 402.4 days to go round its star once.
nu Oct A is one of 2 stars in its system: the other is drawn where the Washington Double Star Catalog measures it on the sky.
| Spectral type | K1 IV |
| Surface temperature | 4,910 K |
| Mass | 1.57 solar masses |
| Radius | 5.04 solar radii |
| Luminosity | 13.2 times the Sun |
| Apparent magnitude | 3.73 |
| Age | about 2.7 billion years |
| Distance from the Sun | 69.1 light-years (21.2 parsecs) |
| Position (J2000) | RA 325.3703°, Dec -77.3911° |
| Constellation | Octans |
nu Oct B has no spectral type listed, with a computed orbit. In 1976 it was 0.1″ from nu Oct A, at position angle 331° (Washington Double Star Catalog, 21415-7723 BLM 6): 2.1 AU on the sky at this distance. The true distance can only be larger.
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| nu Oct A b disputed | 402.4 days | 1.240 AU | 13.3 R⊕ estimated | 696.04 M⊕ | Radial Velocity, 2016 |
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 4,910 K, 13 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 3.62 to 6.57 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 69 years ago, within living memory.