Exoplanet CatalogExoplanet HR 8799 d
Radius13.00 R⊕Earth = 1
Mass3,000.0 M⊕Earth = 1
Orbital period37,000.00 d
Equilibrium temp.1,300 K≈ 1,027 °C
Distance134.5 ly
Discovered2008Imaging
Size compared (radius, Earth = 1)
1.00
3.88
11.21
13.00
Where it sits among all planets (percentile)
84%
96%
100%
84%
12%
Share of planets with a smaller value (of 6,445 planets, where known).
Planets of HR 8799 (4)
| Planet | Period (d) | Radius (R⊕) | Mass (M⊕) | Eq. temp K | Year |
|---|---|---|---|---|---|
| HR 8799 e | 20,815.60 | 13.11 | 3,178.3 | 1,150 | 2010 |
| HR 8799 d | 37,000.00 | 13.00 | 3,000.0 | 1,300 | 2008 |
| HR 8799 c | 69,000.00 | 13.00 | 3,000.0 | 1,200 | 2008 |
| HR 8799 b | 170,000.00 | 13.00 | 2,000.0 | 1,200 | 2008 |
| Host star | Spectral type | Teff K | Radius (R☉) | Mass (M☉) |
|---|---|---|---|---|
| HR 8799 | A5 V | 7,205 | 1.49 | 1.50 |
Values are NASA Exoplanet Archive estimates and may change. Equilibrium temperature is a theoretical value ignoring any atmosphere.