HD 82943 is 90.0 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this G2/3V star; the first was found in 2003 by radial velocity (La Silla Observatory).
Fly there in 3DHD 82943 b takes 441.5 days to go round its star once.
| Spectral type | G2/3V |
| Surface temperature | 5,935 K |
| Mass | 1.08 solar masses |
| Radius | 1.1826 solar radii |
| Luminosity | 1.563 times the Sun |
| Apparent magnitude | 6.54993 |
| Age | about 2.35 billion years |
| Distance from the Sun | 90.0 light-years (27.6 parsecs) |
| Position (J2000) | RA 143.7114°, Dec -12.1303° |
| Constellation | Hydra |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 82943 c | 220.1 days | 0.743 AU | 13.4 R⊕ estimated | 622.6 M⊕ | Radial Velocity, 2003 |
| HD 82943 b | 441.5 days | 1.183 AU | 13.5 R⊕ estimated | 534.25 M⊕ | Radial Velocity, 2003 |
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 5,935 K, 1.6 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 1.18 to 2.07 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 90 years ago, within living memory.