Daily Sunspot Evaluation
Observation Sheet Sunday, 25 September 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)
- 14
- Number of spots (f)
- 103
- Relative number (R)
- 243
- Observer
- ET
- Reading
- all checks consistent
- File
- 19600925.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 5 | 23 | 3E | ||||
| 2 | B – 14 | 27 | 12E | ||||
| 3 | A – 2 | 25 | 33E | ||||
| 4 | A – 3 | -14 | 13E | ||||
| 5 | A – 5 | -19 | 13E | ||||
| 6 | A – 4 | -12 | 6E | ||||
| 7 | A – 11 | -20 | 0 | ||||
| 8 | J – 5 | 0 | 2W | ||||
| 9 | H – 5 | -18 | 13W | ||||
| 10 | C – 15 | -20 | 50W | ||||
| 11 | ? – 1 | -6 | 82W | ||||
| 12 | E – 23 | 8 | 13W | ||||
| 13 | J – 2 | 16 | 26W | ||||
| 14 | B – 8 | 17 | 11W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.