HD 39194 is 86.1 light-years from the Sun. The NASA Exoplanet Archive lists 3 planets around this K0 V star; the first was found in 2021 by radial velocity (La Silla Observatory).
Fly there in 3DHD 39194 b goes round its star every 5.64 days, 16 times as often as Mercury goes round the Sun.
| Spectral type | K0 V |
| Surface temperature | 5,205 K |
| Mass | 0.86 solar masses |
| Radius | 0.783742 solar radii |
| Luminosity | 0.39 times the Sun |
| Apparent magnitude | 8.09 |
| Age | about 10 billion years |
| Distance from the Sun | 86.1 light-years (26.4 parsecs) |
| Position (J2000) | RA 86.1291°, Dec -70.1382° |
| Constellation | Mensa |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 39194 b | 5.64 days | 0.0590 AU | 1.99 R⊕ estimated | 4.62 M⊕ minimum | Radial Velocity, 2021 |
| HD 39194 c | 14.0 days | 0.108 AU | 2.65 R⊕ estimated | 7.49 M⊕ minimum | Radial Velocity, 2021 |
| HD 39194 d | 33.9 days | 0.195 AU | 2.12 R⊕ estimated | 5.16 M⊕ minimum | Radial Velocity, 2021 |
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 5,205 K, 0.39 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 0.61 to 1.10 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 86 years ago, within living memory.