Daily Sunspot Evaluation
Observation Sheet Sunday, 31 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)
- 10
- Number of spots (f)
- 125
- Relative number (R)
- 225
- Observer
- MH
- Reading
- all checks consistent
- File
- 19580831.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 27 | 15 | 1E | ||||
| 2 | B – 6 | 26 | 14E | ||||
| 3 | C – 20 | 36 | 24E | ||||
| 4 | C – 4 | 18 | 42E | ||||
| 5 | A – 1 | -6 | 62E | ||||
| 6 | J – 1 | -19 | 28E | ||||
| 7 | A – 1 | -23 | 21E | ||||
| 8 | F – 43 | -8 | 0 | ||||
| 9 | H – 2 | -10 | 16W | ||||
| 10 | E – 20 | 26 | 2W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.