Daily Sunspot Evaluation
Observation Details Sunday, 18 July 2021
- No
- 19219
- Date
- 2021 / 07 / 18,319
- Time
- 07:40 UT
- Seeing
- 3 / 5
- Number of groups (g)
- 3
- Number of spots (f)
- 15
- Relative number (R)
- 45
- Lf
- 2
- P0
- 5.15°
- B0
- 4.64°
- L0
- 182.16°
- Observer
- O.PLEVNE=T.Y.
Remarks: Kenar Titremesi
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | DSI – 5 | 26 | 17.4W | 200 | 19.4W | 05.4 | |
| 2 | DAI – 9 | -17 | 08.1W | 190 | 10.1W | 05.6 | |
| 3 | AX_ – 1 | -43 | 45E | 137 | 43E | 02.7 |