Daily Sunspot Evaluation
Observation Details Tuesday, 21 February 2012
- No
- 16433
- Date
- 2012 / 02 / 21,333
- Time
- 08:00 UT
- Seeing
- 4 / 5
- Number of groups (g)
- 6
- Number of spots (f)
- 38
- Relative number (R)
- 98
- Lf
- 2
- P0
- -19.22°
- B0
- -7.04°
- L0
- 161.79°
- Observer
- Özgecan ÖNAL
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | AX_ – 1 | 28 | 34W | 196 | 36W | - | |
| 2 | HS_ – 1 | 11 | 33W | 195 | 35W | 1.6 | |
| 3 | DHI – 32 | 15 | 14W | 176 | 16W | 7.0 | |
| 4 | AX_ – 1 | 14 | 27E | 135 | 25E | - | |
| 5 | AX_ – 1 | 18 | 29E | 133 | 27E | - | |
| 6 | AX_ – 2 | 12 | 32E | 130 | 30E | 0.9 |
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