About this system
The innermost, HD 28109 b, circles it in 22.9 days; the outermost, HD 28109 d, in 84.3 days.
Worlds of HD 28109
| Name | Type | Size | A year | Temperature |
|---|---|---|---|---|
| HD 28109 b | Sub-Neptune | 2.7 × Earth | 22.9 days | 867 K |
| HD 28109 c | Neptune-like | 4.1 × Earth | 56 days | 643 K |
| HD 28109 d | Sub-Neptune | 3.1 × Earth | 84.3 days | 561 K |