HD 43197 is 204 light-years from the Sun. The NASA Exoplanet Archive lists 2 planets around this G8 V star; the first was found in 2010 by radial velocity (La Silla Observatory).
Fly there in 3DHD 43197 c takes 25.5 years to go round its star once.
| Spectral type | G8 V |
| Surface temperature | 5,508 K |
| Mass | 0.96 solar masses |
| Radius | 1 solar radii |
| Luminosity | 0.7295 times the Sun |
| Apparent magnitude | 8.98 |
| Distance from the Sun | 203.6 light-years (62.4 parsecs) |
| Position (J2000) | RA 93.3993°, Dec -29.8972° |
| Constellation | Canis Major |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 43197 b | 308.9 days | 0.882 AU | 14.2 R⊕ estimated | 175.76 M⊕ minimum | Radial Velocity, 2010 |
| HD 43197 c | 25.5 years | 8.540 AU | 12.6 R⊕ estimated | 2500.7 M⊕ | Radial Velocity, 2022 |
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 5,508 K, 0.73 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.82 to 1.47 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 204 years ago, around 1820.