Daily Sunspot Evaluation
Observation Sheet Wednesday, 3 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)
- 12
- Number of spots (f)
- 99
- Relative number (R)
- 219
- Observer
- YÖ
- Reading
- all checks consistent
- File
- 19570703.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 9 | 26 | 12E | ||||
| 2 | E – 14 | 14 | 17E | ||||
| 3 | E – 17 | 13 | 28E | ||||
| 4 | B – 4 | 13 | 56E | ||||
| 5 | J – 3 | 13 | 62E | ||||
| 6 | H – 1 | -12 | 31E | ||||
| 7 | F – 30 | -30 | 25E | ||||
| 8 | H – 1 | -14 | 4,E | ||||
| 9 | G – 7 | -11 | 10,W | ||||
| 10 | A – 1 | -15 | 24,W | ||||
| 11 | H – 10 | 10 | 41,W | ||||
| 12 | B – 2 | 11 | 61,W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.