Daily Sunspot Evaluation
Observation Sheet Tuesday, 8 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)
- 16
- Number of spots (f)
- 124
- Relative number (R)
- 284
- Observer
- ET
- Reading
- all checks consistent
- File
- 19571008.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 14 | 7E | ||||
| 2 | E – 25 | 19 | 35E | ||||
| 3 | A – 1 | 25 | 49E | ||||
| 4 | A – 4 | 9 | 61E | ||||
| 5 | C – 9 | -17 | 7E | ||||
| 6 | C – 12 | -39 | 0 | ||||
| 7 | B – 3 | -13 | 15W | ||||
| 8 | B – 4 | -27 | 41W | ||||
| 9 | H – 6 | -23 | 51W | ||||
| 10 | C – 15 | -15 | 31W | ||||
| 11 | A – 1 | -6 | 34W | ||||
| 12 | C – 23 | 13 | 8W | ||||
| 13 | B – 11 | 18 | 14W | ||||
| 14 | J – 1 | 26 | 76W | ||||
| 15 | A – 5 | 35 | 66W | ||||
| 16 | B – 3 | 40 | 25W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.