Daily Sunspot Evaluation
Observation Details Friday, 17 July 2015
- No
- 17493
- Date
- 2015 / 07 / 17,250
- Time
- 06:00 UT
- Seeing
- 3 / 5
- Number of groups (g)
- 5
- Number of spots (f)
- 16
- Relative number (R)
- 66
- Lf
- 3
- P0
- 4.45°
- B0
- 4.50°
- L0
- 328.07°
- Observer
- Korhan YELKENCİ
Remarks: Kenar Titremesi
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | AX_ – 1 | 17 | 56W | 24 | 59W | - | |
| 2 | BXO – 2 | 8 | 55W | 23 | 58W | 5.4 | |
| 3 | CAO – 3 | 12 | 19E | 309 | 16E | 5.0 | |
| 4 | CAI – 9 | 17 | 58E | 270 | 55E | 9.8 | |
| 5 | HS_ – 1 | -18 | 43W | 11 | 46W | 2.3 |