All fields Showing 1 planetary systems / 4 planets / 1 multiple planet systems
| Planet △ | Mass | Radius | Period | a | e | i | Ang. dist. | Status | Discovery | Update |
|---|---|---|---|---|---|---|---|---|---|---|
| HR 8799 b | 7.0 | 1.1 | 164250.0 | 68.0 | — | 28.0 | 1.725888 | R | 2008 | 2013-01-16 |
| HR 8799 c | 10.0 | 1.3 | 82145.0 | 42.9 | — | 28.0 | 1.088832 | R | 2008 | 2013-01-16 |
| HR 8799 d | 10.0 | 1.2 | 41054.0 | 27.0 | 0.1 | 28.0 | 0.685279 | R | 2008 | 2013-01-16 |
| HR 8799 e | 9.0 | — | 18000.0 | 14.5 | — | — | 0.36802 | R | 2010 | 2013-01-16 |