Daily Sunspot Evaluation
Observation Sheet Saturday, 10 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)
- 76
- Relative number (R)
- 216
- Observer
- SG
- Reading
- all checks consistent
- File
- 19600910.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 27 | 5E | ||||
| 2 | A – 1 | 20 | 39E | ||||
| 3 | ? – 1 | 19 | 80E | ||||
| 4 | J – 2 | 15 | 36E | ||||
| 5 | J – 2 | 14 | 66E | ||||
| 6 | J – 1 | 10 | 70E | ||||
| 7 | B – 7 | 5 | 6E | ||||
| 8 | B – 3 | -17 | 26E | ||||
| 9 | H – 1 | -15 | 6E | ||||
| 10 | C – 16 | -8 | 3W | ||||
| 11 | D – 16 | -4 | 31W | ||||
| 12 | A – 2 | 16 | 38W | ||||
| 13 | A – 1 | 13 | 8W | ||||
| 14 | H – 22 | 19 | 9W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.