HD 116029 is 402 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this K0 star; the first was found in 2011 by radial velocity (W. M. Keck Observatory).
Fly there in 3DHD 116029 c takes 907.0 days to go round its star once.
HD 116029 is one of 2 stars in its system. The position of the other star is not catalogued, so only HD 116029 and its planets are drawn.
Where the archive gives only a period or only an orbit size, the other is worked out from Kepler’s third law with the star’s mass.
| Spectral type | K0 |
| Surface temperature | 4,819 K |
| Mass | 0.83 solar masses |
| Radius | 4.89 solar radii |
| Luminosity | 11.3 times the Sun |
| Apparent magnitude | 7.88 |
| Age | about 2.7 billion years |
| Distance from the Sun | 402.0 light-years (123.2 parsecs) |
| Position (J2000) | RA 200.1647°, Dec 24.6485° |
| Constellation | Coma Berenices |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 116029 c | 907.0 days | 1.723 AU from Kepler’s law | 13.7 R⊕ estimated | 403.64 M⊕ minimum | Radial Velocity, 2016 |
| HD 116029 b | 670.0 days | 1.650 AU | 13.6 R⊕ estimated | 444.96 M⊕ minimum | Radial Velocity, 2011 |
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 4,819 K, 11 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 3.36 to 6.13 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 402 years ago, around 1620.