Daily Sunspot Evaluation
Observation Sheet Tuesday, 26 July 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)
- 9
- Number of spots (f)
- 31
- Relative number (R)
- 121
- Observer
- ET
- Reading
- all checks consistent
- File
- 19600726.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | 27 | 47E | ||||
| 2 | H – 10 | 8 | 55E | ||||
| 3 | J – 1 | -11 | 11E | ||||
| 4 | J – 2 | -7 | 0 | ||||
| 5 | B – 7 | -6 | 12W | ||||
| 6 | A – 2 | -10 | 50W | ||||
| 7 | B – 6 | 9 | 33W | ||||
| 8 | A – 1 | 10 | 15W | ||||
| 9 | J – 1 | 24 | 48W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.