Daily Sunspot Evaluation
Observation Sheet Sunday, 10 August 1958
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)
- 156
- Relative number (R)
- 296
- Observer
- AB
- Reading
- all checks consistent
- File
- 19580810.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 6 | 45 | 42E | ||||
| 2 | J – 1 | 17 | 13E | ||||
| 3 | B – 2 | 16 | 75E | ||||
| 4 | H – 2 | 15 | 66E | ||||
| 5 | F – 35 | -14 | 24E | ||||
| 6 | B – 9 | -26 | 21E | ||||
| 7 | B – 12 | -6 | 5E | ||||
| 8 | E – 26 | -23 | 7E | ||||
| 9 | H – 10 | -12 | 19W | ||||
| 10 | C – 7 | -20 | 44W | ||||
| 11 | C – 10 | -12 | 47W | ||||
| 12 | A – 1 | 20 | 50W | ||||
| 13 | B – 10 | 23 | 75W | ||||
| 14 | F – 25 | 20 | 32W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.