Daily Sunspot Evaluation
Observation Details Wednesday, 20 December 2017
- No
- 18249
- Date
- 2017 / 12 / 20,375
- Time
- 09:00 UT
- Seeing
- 3 / 5
- Number of groups (g)
- 1
- Number of spots (f)
- 9
- Relative number (R)
- 19
- Lf
- 2
- P0
- 7.65°
- B0
- -1.58°
- L0
- 139.12°
- Observer
- Süleyman FİŞEK
Remarks: Bulutlar Arasında
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | CRI – 9 | 18 | 51.7E | 87 | 49.7E | 6.4 |
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