HD 142 is 85.4 light-years from the Sun. The NASA Exoplanet Archive lists 3 planets around this F7V star; the first was found in 2001 by radial velocity (Anglo-Australian Telescope).
Fly there in 3DHD 142 c takes 27.8 years to go round its star once.
HD 142 is one of 2 stars in its system. The position of the other star is not catalogued, so only HD 142 and its planets are drawn.
| Spectral type | F7V |
| Surface temperature | 6,245 K |
| Mass | 1.21 solar masses |
| Radius | 1.47 solar radii |
| Luminosity | 2.98 times the Sun |
| Apparent magnitude | 5.7 |
| Age | about 3.12 billion years |
| Distance from the Sun | 85.4 light-years (26.2 parsecs) |
| Position (J2000) | RA 1.5837°, Dec -49.0754° |
| Constellation | Phoenix |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 142 A d | 108.5 days | 0.474 AU | 10.9 R⊕ estimated | 82.635 M⊕ minimum | Radial Velocity, 2022 |
| HD 142 b | 351.4 days | 1.039 AU | 12.7 R⊕ estimated | 2256.6 M⊕ | Radial Velocity, 2001 |
| HD 142 c | 27.8 years | 9.811 AU | 12.4 R⊕ estimated | 3464.6 M⊕ | Radial Velocity, 2012 |
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 6,245 K, 3.0 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 1.59 to 2.78 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 85 years ago, within living memory.