Exoplanet CatalogExoplanet HD 1397 b
Radius11.50 R⊕Earth = 1
Mass131.9 M⊕Earth = 1
Orbital period11.54 d
Equilibrium temp.1,228 K≈ 955 °C
Distance259.5 ly
Discovered2018Transit
Size compared (radius, Earth = 1)
1.00
3.88
11.21
11.50
Where it sits among all planets (percentile)
74%
72%
52%
81%
22%
Share of planets with a smaller value (of 6,445 planets, where known).
Planets of HD 1397 (1)
| Planet | Period (d) | Radius (R⊕) | Mass (M⊕) | Eq. temp K | Year |
|---|---|---|---|---|---|
| HD 1397 b | 11.54 | 11.50 | 131.9 | 1,228 | 2018 |
| Host star | Spectral type | Teff K | Radius (R☉) | Mass (M☉) |
|---|---|---|---|---|
| HD 1397 | G5 III/IV | 5,521 | 2.34 | 1.32 |
Values are NASA Exoplanet Archive estimates and may change. Equilibrium temperature is a theoretical value ignoring any atmosphere.