Daily Sunspot Evaluation
Observation Details Wednesday, 17 April 2019
- No
- 18623
- Date
- 2019 / 04 / 17,306
- Time
- 07:20 UT
- Seeing
- 3 / 5
- Number of groups (g)
- 2
- Number of spots (f)
- 3
- Relative number (R)
- 23
- Lf
- 3
- P0
- -25.89°
- B0
- -5.47°
- L0
- 247.69°
- Observer
- Özgecan ÖNALTAŞ
Remarks: Hafif Sis
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | HS_ – 1 | 5 | 53.3W | 301 | 56.3W | 3.7 | |
| 2 | AX_ – 2 | 4 | 11.8W | 260 | 14.8W | 1.7 |