Daily Sunspot Evaluation
Observation Sheet Wednesday, 31 August 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)
- 6
- Number of spots (f)
- 52
- Relative number (R)
- 112
- Observer
- AB
- Reading
- all checks consistent
- File
- 19600831.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 2 | 19 | 2E | ||||
| 2 | C – 17 | -11 | 12W | ||||
| 3 | D – 11 | -17 | 26W | ||||
| 4 | B – 9 | -11 | 51W | ||||
| 5 | J – 1 | 7 | 62W | ||||
| 6 | C – 12 | 17 | 45W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.