// Constellation
Delphinus
“Dolphin”
- Latin name
- Delphinus (Del)
- Best visibility
- evenings in September
- Fully visible between
- 90° N – 69° S
- Naked-eye stars
- 18
Delphinus is highest in the evening sky (around 9 pm) in September. The whole constellation rises above the horizon between 90° N and 69° S. Its brightest star is Rotanev at magnitude 3.64 — about 101 light-years away.
The brightest stars
| Star | Designation | Magnitude | Distance |
|---|---|---|---|
| Rotanev | β Del | 3.64 | 101 ly |
| Sualocin | α Del | 3.77 | 254 ly |
| Aldulfin | ε Del | 4.03 | 330 ly |
| — | γ² Del | 4.27 | 126 ly |
| — | δ Del | 4.43 | 223 ly |
| — | ζ Del | 4.64 | 220 ly |
More constellations
Star data: HYG database. Constellation borders: IAU.