Daily Sunspot Evaluation
Observation Sheet Thursday, 24 December 1959
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)
- 11
- Number of spots (f)
- 70
- Relative number (R)
- 180
- Observer
- AB
- Reading
- all checks consistent
- File
- 19591224.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 3 | 25 | 1E | ||||
| 2 | C – 3 | 20 | 9E | ||||
| 3 | B – 4 | 20 | 20E | ||||
| 4 | B – 8 | 9 | 22E | ||||
| 5 | J – 1 | 25 | 70E | ||||
| 6 | B – 4 | 9 | 49E | ||||
| 7 | C – 4 | -18 | 36W | ||||
| 8 | E – 23 | 11 | 33W | ||||
| 9 | B – 6 | 4 | 9W | ||||
| 10 | H – 5 | 18 | 12W | ||||
| 11 | B – 9 | 24 | 15W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.