Exoplanet CatalogExoplanet HD 17156 b
Radius12.26 R⊕Earth = 1
Mass1,036.1 M⊕Earth = 1
Orbital period21.22 d
Equilibrium temp.888 K≈ 615 °C
Distance254.7 ly
Discovered2007Radial Velocity
Size compared (radius, Earth = 1)
1.00
3.88
11.21
12.26
Where it sits among all planets (percentile)
77%
90%
66%
61%
22%
Share of planets with a smaller value (of 6,445 planets, where known).
Planets of HD 17156 (1)
| Planet | Period (d) | Radius (R⊕) | Mass (M⊕) | Eq. temp K | Year |
|---|---|---|---|---|---|
| HD 17156 b | 21.22 | 12.26 | 1,036.1 | 888 | 2007 |
| Host star | Spectral type | Teff K | Radius (R☉) | Mass (M☉) |
|---|---|---|---|---|
| HD 17156 | G5 | 6,046 | 1.52 | 1.28 |
Values are NASA Exoplanet Archive estimates and may change. Equilibrium temperature is a theoretical value ignoring any atmosphere.