Daily Sunspot Evaluation
Observation Details Friday, 21 January 2011
- No
- 16128
- Date
- 2011 / 01 / 21,521
- Time
- 12:30 UT
- Seeing
- 3 / 5
- Number of groups (g)
- 2
- Number of spots (f)
- 24
- Relative number (R)
- 44
- Lf
- 0
- P0
- -7.50°
- B0
- -5.14°
- L0
- 345.07°
- Observer
- Hikmet ÇAKMAK
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | CAO – 4 | 23 | 00_ | 345 | 00_ | 4.2 | |
| 2 | BXI – 20 | 17 | 02E | 343 | 02E | 5.3 |
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