Daily Sunspot Evaluation
Observation Sheet Saturday, 23 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)
- 12
- Number of spots (f)
- 153
- Relative number (R)
- 273
- Observer
- AB
- Reading
- all checks consistent
- File
- 19580823.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 13 | 21 | 12E | ||||
| 2 | A – 1 | 18 | 41E | ||||
| 3 | B – 5 | 9 | 19E | ||||
| 4 | E – 20 | 9 | 37E | ||||
| 5 | C – 10 | 8 | 51E | ||||
| 6 | J – 1 | -8 | 56E | ||||
| 7 | E – 25 | -17 | 9E | ||||
| 8 | C – 7 | -13 | 20W | ||||
| 9 | D – 6 | -11 | 61W | ||||
| 10 | A – 1 | 27 | 69W | ||||
| 11 | A – 3 | 23 | 41W | ||||
| 12 | F – 61 | 18 | 18W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.