Daily Sunspot Evaluation
Observation Sheet Monday, 8 July 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
- YÖ
- Reading
- all checks consistent
- File
- 19570708.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 2 | 33 | 51E | ||||
| 2 | D – 10 | -18 | 26E | ||||
| 3 | F – 21 | -30 | 37W | ||||
| 4 | J – 2 | -16 | 35W | ||||
| 5 | J – 1 | -15 | 64W | ||||
| 6 | J – 1 | -12 | 88W | ||||
| 7 | D – 4 | 11 | 53W | ||||
| 8 | J – 3 | 14 | 42W | ||||
| 9 | D – 7 | 13 | 34W | ||||
| 10 | C – 5 | 14 | 8W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.