Daily Sunspot Evaluation
Observation Sheet Thursday, 24 October 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)
- 18
- Number of spots (f)
- 126
- Relative number (R)
- 306
- Observer
- FY
- Reading
- all checks consistent
- File
- 19571024.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 13 | 14 | 6E | ||||
| 2 | D – 12 | 21 | 18E | ||||
| 3 | C – 19 | 12 | 20E | ||||
| 4 | ? – 1 | 27 | 78E | ||||
| 5 | C – 5 | 15 | 47E | ||||
| 6 | ? – 1 | 13 | 81E | ||||
| 7 | G – 3 | 10 | 60E | ||||
| 8 | C – 10 | -13 | 43E | ||||
| 9 | E – 20 | -23 | 21E | ||||
| 10 | A – 3 | -29 | 23E | ||||
| 11 | A – 2 | -11 | 5W | ||||
| 12 | C – 7 | -25 | 18W | ||||
| 13 | ? – 2 | -23 | 88W | ||||
| 14 | ? – 3 | 8 | 77W | ||||
| 15 | J – 4 | 16 | 27W | ||||
| 16 | ? – 2 | 27 | 87W | ||||
| 17 | J – 4 | 26 | 36W | ||||
| 18 | D – 15 | 24 | 8W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.