Daily Sunspot Evaluation
Observation Details Tuesday, 28 February 2017
- No
- 17985
- Date
- 2017 / 02 / 28,351
- Time
- 08:25 UT
- Seeing
- 3 / 5
- Number of groups (g)
- 4
- Number of spots (f)
- 15
- Relative number (R)
- 55
- Lf
- 2
- P0
- -21.38°
- B0
- -7.21°
- L0
- 75.20°
- Observer
- Hikmet ÇAKMAK
Remarks: Görüntü Titremesi, Hafif Sis
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | HS_ – 1 | 16 | 33W | 108 | 35W | 2.2 | |
| 2 | BXO – 7 | 10 | 07E | 68 | 05E | 5.2 | |
| 3 | BXO – 3 | 15 | 33E | 42 | 31E | 3.7 | |
| 4 | DAI – 4 | 15 | 41E | 34 | 39E | 4.9 |
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