HD 180617
HD 180617 is an M2.5 V star 19.3 light years away with 1 known planet. It was found in 2018. It has a companion star.
Open in 3DPlanets
| Planet | Orbital period | Distance from star | Radius (Earths) | Mass (Earths) | Found | Method |
|---|---|---|---|---|---|---|
| HD 180617 b | 105.9 days | 0.343 AU | at least 12.21 | 2018 | Radial Velocity |
"At least" is a minimum mass. Radial velocity can only measure mass times the sine of the orbit's tilt.
Star
- Spectral type M2.5 V
- 3,534 K surface temperature
- 0.484 times the mass of the Sun
- 0.481 times the radius of the Sun
Data from the NASA Exoplanet Archive, as of October 3, 2026. In the 3D view sizes and distances are compressed and every orbit is drawn in the same plane. Where each planet sits along its orbit is made up.