Daily Sunspot Evaluation
Observation Sheet Wednesday, 30 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)
- 21
- Number of spots (f)
- 147
- Relative number (R)
- 357
- Observer
- MH
- Reading
- all checks consistent
- File
- 19571030.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 3 | 15 | 2E | ||||
| 2 | B – 4 | 41 | 13E | ||||
| 3 | D – 13 | 28 | 19E | ||||
| 4 | A – 1 | 40 | 57E | ||||
| 5 | B – 5 | 15 | 20E | ||||
| 6 | H – 2 | 14 | 54E | ||||
| 7 | ? – 2 | -14 | 76E | ||||
| 8 | A – 5 | -14 | 30E | ||||
| 9 | C – 19 | -14 | 16E | ||||
| 10 | E – 30 | -22 | 19E | ||||
| 11 | C – 7 | -13 | 14W | ||||
| 12 | D – 4 | -22 | 63W | ||||
| 13 | H – 8 | -13 | 39W | ||||
| 14 | C – 9 | 13 | 64W | ||||
| 15 | ? – 1 | 14 | 82W | ||||
| 16 | A – 1 | 14 | 34W | ||||
| 17 | A – 1 | 13 | 25W | ||||
| 18 | C – 4 | 22 | 61W | ||||
| 19 | E – 19 | 22 | 36W | ||||
| 20 | B – 3 | 37 | 35W | ||||
| 21 | C – 6 | 26 | 4W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.