Daily Sunspot Evaluation
Observation Sheet Sunday, 10 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)
- 7
- Number of spots (f)
- 52
- Relative number (R)
- 122
- Observer
- AB
- Reading
- all checks consistent
- File
- 19600710.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 22 | 15 | 1E | ||||
| 2 | C – 7 | 19 | 42E | ||||
| 3 | ? – 2 | 18 | 83E | ||||
| 4 | J – 2 | -11 | 17E | ||||
| 5 | J – 3 | -10 | 16W | ||||
| 6 | ? – 1 | 9 | 85W | ||||
| 7 | B – 15 | 12 | 23W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.