Daily Sunspot Evaluation
Observation Sheet Wednesday, 13 December 2000
There is no typed record for this day. The values below were read by computer from the table on the sheet; when in doubt, see the drawing. Details →
- Number of groups (g)
- 7
- Number of spots (f)
- 31
- Relative number (R)
- 101
- Observer
- TÇ
- Reading
- all checks consistent
- File
- 20001213.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXO – 2 | 22 | 30W | 133 | 32W | 0.5 | |
| 2 | CRO – 10 | 14 | 12E | 91 | 10E | 4 | |
| 3 | EAC – 11 | 7 | 20E | 83 | 18E | -10 | |
| 4 | HR – 1 | 18 | 39E | 64 | 37E | 0.5 | |
| 5 | AX – 1 | 15 | 77E | 26 | 75E | ||
| 6 | CAO – 5 | -25 | 39E | 64 | 37E | 5 | |
| 7 | ? – 1 | -17 | 85E | 18 | 83E | ? |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.