Daily Sunspot Evaluation
Observation Details Saturday, 18 April 2015
- No
- 17409
- Date
- 2015 / 04 / 18,497
- Time
- 11:55 UT
- Seeing
- 5 / 5
- Number of groups (g)
- 11
- Number of spots (f)
- 108
- Relative number (R)
- 218
- Lf
- 0
- P0
- -25.80°
- B0
- -5.37°
- L0
- 75.39°
- Observer
- H.ÇAKMAK=Ö.Ö.
Remarks: Görüntü Titremesi
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | NOAA |
|---|---|---|---|---|---|---|---|
| 1 | AX_ – 2 | 15 | 38W | 113 | 38W | 01.8 | |
| 2 | DAI – 38 | 11 | 18W | 94 | 18W | 09.5 | |
| 3 | HA_ – 7 | 9 | 09W | 85 | 09W | 03.9 | |
| 4 | BXO – 6 | 15 | 07W | 82 | 07W | 04.5 | |
| 5 | CAI – 22 | 19 | 17E | 59 | 17E | 08.5 | |
| 6 | CKI – 15 | 5 | 28E | 48 | 28E | 12.1 | |
| 7 | AX_ – 1 | -4 | 77W | 152 | 77W | - | |
| 8 | BXI – 6 | -2 | 60W | 136 | 60W | 04.5 | |
| 9 | BXO – 5 | -8 | 25W | 101 | 25W | 03.4 | |
| 10 | AX_ – 1 | -19 | 19W | 94 | 19W | - | |
| 11 | HA_ – 5 | -9 | 64E | 11 | 64E | 03.5 |