Daily Sunspot Evaluation
Observation Details Thursday, 21 March 2013
- No
- 16772
- Date
- 2013 / 03 / 21,330
- Time
- 07:55 UT
- Seeing
- 3 / 5
- Number of groups (g)
- 4
- Number of spots (f)
- 20
- Relative number (R)
- 60
- Lf
- 2
- P0
- -25.31°
- B0
- -7.00°
- L0
- 2.17°
- Observer
- Orhan GÜNEŞ
Remarks: Bulutlar Arasında
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 7 | 8 | 72W | 74 | 74W | 7.4 | |
| 2 | CAI – 3 | 12 | 61W | 63 | 63W | 3.1 | |
| 3 | CAO – 2 | 9 | 52W | 54 | 54W | 6.9 | |
| 4 | BXI – 8 | 7 | 12W | 14 | 14W | 2.3 |