Daily Sunspot Evaluation
Observation Sheet Thursday, 8 August 1957
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)
- 56
- Relative number (R)
- 156
- Observer
- KA
- Reading
- all checks consistent
- File
- 19570808.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 2 | 12 | 36E | ||||
| 2 | A – 1 | -13 | 36E | ||||
| 3 | J – 3 | -36 | 47E | ||||
| 4 | D – 10 | -21 | 23E | ||||
| 5 | A – 1 | -15 | 18W | ||||
| 6 | ? – 3 | -30 | 38W | ||||
| 7 | J – 2 | 9 | 22W | ||||
| 8 | D – 10 | 16 | 44W | ||||
| 9 | A – 3 | 13 | 15W | ||||
| 10 | E – 21 | 26 | 52W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.