Daily Sunspot Evaluation
Observation Sheet Thursday, 25 December 1958
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)
- 10
- Number of spots (f)
- 102
- Relative number (R)
- 202
- Observer
- FY
- Reading
- all checks consistent
- File
- 19581225.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 2 | 10 | 3E | ||||
| 2 | D – 13 | 13 | 45E | ||||
| 3 | C – 8 | 18 | 59E | ||||
| 4 | C – 10 | 7 | 69E | ||||
| 5 | A – 1 | -22 | 44E | ||||
| 6 | F – 50 | -17 | 32E | ||||
| 7 | B – 2 | -23 | 7W | ||||
| 8 | C – 11 | 9 | 42W | ||||
| 9 | H – 1 | 19 | 26W | ||||
| 10 | B – 4 | 12 | 7W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.