Daily Sunspot Evaluation
Observation Sheet Sunday, 4 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)
- 9
- Number of spots (f)
- 104
- Relative number (R)
- 194
- Observer
- YÖ
- Reading
- all checks consistent
- File
- 19570804.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 55 | 27 | 1E | ||||
| 2 | D – 11 | 8 | 32E | ||||
| 3 | B – 2 | -18 | 63E | ||||
| 4 | H – 17 | -30 | 20W | ||||
| 5 | A – 1 | -16 | 19W | ||||
| 6 | A – 5 | -16 | 26W | ||||
| 7 | H – 7 | -28 | 43W | ||||
| 8 | ? – 1 | -13 | 80W | ||||
| 9 | B – 5 | 33 | 45W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.