Exoplanet CatalogExoplanet HD 66428 b
Radius12.40 R⊕Earth = 1
Mass3,478.9 M⊕Earth = 1
Orbital period2,269.82 d
Equilibrium temp.159 K≈ -114 °C
Distance173.8 ly
Discovered2005Radial Velocity
Size compared (radius, Earth = 1)
1.00
3.88
11.21
12.40
Where it sits among all planets (percentile)
78%
97%
96%
4%
16%
Share of planets with a smaller value (of 6,445 planets, where known).
Planets of HD 66428 (2)
| Planet | Period (d) | Radius (R⊕) | Mass (M⊕) | Eq. temp K | Year |
|---|---|---|---|---|---|
| HD 66428 b | 2,269.82 | 12.40 | 3,478.9 | 159 | 2005 |
| HD 66428 c | 10,478.84 | 13.50 | 560.6 | 96 | 2021 |
| Host star | Spectral type | Teff K | Radius (R☉) | Mass (M☉) |
|---|---|---|---|---|
| HD 66428 | G8 IV (+ G) | 5,716 | 1.13 | 1.01 |
Values are NASA Exoplanet Archive estimates and may change. Equilibrium temperature is a theoretical value ignoring any atmosphere.