HD 39855 is 75.9 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this G8 V star; the first was found in 2019 by radial velocity (Las Campanas Observatory).
Fly there in 3DHD 39855 b goes round its star every 3.25 days, 27 times as often as Mercury goes round the Sun.
| Spectral type | G8 V |
| Surface temperature | 5,576 K |
| Mass | 0.87 solar masses |
| Radius | 0.744665 solar radii |
| Luminosity | 0.4828 times the Sun |
| Apparent magnitude | 7.51 |
| Distance from the Sun | 75.9 light-years (23.3 parsecs) |
| Position (J2000) | RA 88.6261°, Dec -19.7044° |
| Constellation | Lepus |
| Planet | Year | Orbit | Radius | Mass | Found |
|---|---|---|---|---|---|
| HD 39855 b | 3.25 days | 0.0410 AU | 2.85 R⊕ estimated | 8.5 M⊕ minimum | Radial Velocity, 2019 |
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.