Daily Sunspot Evaluation
Observation Details Thursday, 31 August 2017
- No
- 18151
- Date
- 2017 / 08 / 31,390
- Time
- 09:21 UT
- Seeing
- 4 / 5
- Number of groups (g)
- 4
- Number of spots (f)
- 39
- Relative number (R)
- 79
- Lf
- 1
- P0
- 20.92°
- B0
- 7.18°
- L0
- 162.93°
- Observer
- Başar COŞKUNOĞLU
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | BXO – 13 | 8 | 65.8W | 229 | 66.8W | 09.9 | |
| 2 | FHI – 18 | 15 | 61.2E | 102 | 60.2E | 15.1 | |
| 3 | AX_ – 7 | -6 | 14.6W | 178 | 15.6W | 02.6 | |
| 4 | HS_ – 1 | -7 | 44.7E | 118 | 43.7E | 02.1 |