About this system
The innermost, K2-138 b, circles it in 2.35 days; the outermost, K2-138 g, in 42 days.
Worlds of K2-138
| Name | Type | Size | A year | Temperature |
|---|---|---|---|---|
| K2-138 b | Super-Earth | 1.5 × Earth | 2.35 days | 1,157 K |
| K2-138 c | Sub-Neptune | 2.3 × Earth | 3.56 days | 1,012 K |
| K2-138 d | Sub-Neptune | 2.4 × Earth | 5.4 days | 888 K |
| K2-138 e | Sub-Neptune | 3.4 × Earth | 8.26 days | 757 K |
| K2-138 f | Sub-Neptune | 2.9 × Earth | 12.8 days | 653 K |
| K2-138 g | Sub-Neptune | 3 × Earth | 42 days | 445 K |