About this system
The innermost, GJ 3998 b, circles it in 2.65 days; the outermost, GJ 3998 d, in 41.8 days. One of them lies in the habitable zone: GJ 3998 d.
Worlds of GJ 3998
| Name | Type | Size | A year | Temperature |
|---|---|---|---|---|
| GJ 3998 b | Super-Earth | 1.4 × Earth | 2.65 days | 734 K |
| GJ 3998 c | Sub-Neptune | 2.5 × Earth | 13.7 days | 423 K |
| GJ 3998 d | Sub-Neptune | 2.3 × Earth | 41.8 days | 292 K |