Daily Sunspot Evaluation
Observation Details Monday, 21 August 2017
- No
- 18142
- Date
- 2017 / 08 / 21,313
- Time
- 07:30 UT
- Seeing
- 3 / 5
- Number of groups (g)
- 2
- Number of spots (f)
- 21
- Relative number (R)
- 41
- Lf
- 2
- P0
- 18.07°
- B0
- 6.91°
- L0
- 296.07°
- Observer
- S.FİŞEK=T.Y.
Remarks: Yoğun Bulutlu
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | FHC – 17 | 11 | 08W | 304 | 10W | 21.7 | |
| 2 | EAI – 4 | 7 | 72E | 224 | 70E | 12.4 |