Daily Sunspot Evaluation
Observation Details Tuesday, 13 July 2021
- No
- 19214
- Date
- 2021 / 07 / 13,375
- Time
- 09:00 UT
- Seeing
- 4 / 5
- Number of groups (g)
- 2
- Number of spots (f)
- 3
- Relative number (R)
- 23
- Lf
- 2
- P0
- 2.97°
- B0
- 4.16°
- L0
- 247.59°
- Observer
- Başar COŞKUNOĞLU
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | HS_ – 1 | 24 | 48E | 200 | 46E | 1.6 | |
| 2 | AX_ – 2 | -16 | 19W | 267 | 21W | 0.8 |