HR 8799
HR 8799 is an A5 V star 135 light years away with 4 known planets. The first was found in 2008 and the latest in 2010.
Open in 3DPlanets
| Planet | Orbital period | Distance from star | Radius (Earths) | Mass (Earths) | Found | Method |
|---|---|---|---|---|---|---|
| HR 8799 e | 56.99 years | 16.4 AU | 13.11 | 3,178 | 2010 | Imaging |
| HR 8799 d | 101.3 years | 24 AU | 13 | 3,000 | 2008 | Imaging |
| HR 8799 c | 188.9 years | 38 AU | 13 | 3,000 | 2008 | Imaging |
| HR 8799 b | 465.4 years | 68 AU | 13 | 2,000 | 2008 | Imaging |
Star
- Spectral type A5 V
- 7,205 K surface temperature
- 1.5 times the mass of the Sun
- 1.493 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.