Daily Sunspot Evaluation
Observation Sheet Wednesday, 24 February 1960
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)
- 38
- Relative number (R)
- 108
- Observer
- AB
- Reading
- all checks consistent
- File
- 19600224.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 23 | 1E | ||||
| 2 | A – 5 | 8 | 5E | ||||
| 3 | E – 18 | 8 | 17E | ||||
| 4 | H – 2 | 13 | 41E | ||||
| 5 | C – 6 | 8 | 41E | ||||
| 6 | H – 5 | -22 | 5E | ||||
| 7 | A – 1 | 24 | 31W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.