About this system
The innermost, Kepler-397 b, circles it in 22.3 days; the outermost, Kepler-397 c, in 135 days.
Worlds of Kepler-397
| Name | Type | Size | A year | Temperature |
|---|---|---|---|---|
| Kepler-397 b | Sub-Neptune | 2.5 × Earth | 22.3 days | 539 K |
| Kepler-397 c | Neptune-like | 0.55 × Jupiter | 135 days | 295 K |