Daily Sunspot Evaluation
Observation Sheet Monday, 14 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)
- 13
- Number of spots (f)
- 127
- Relative number (R)
- 257
- Observer
- ET
- Reading
- all checks consistent
- File
- 19571014.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 25 | 5E | ||||
| 2 | B – 8 | 24 | 28E | ||||
| 3 | A – 3 | 29 | 47E | ||||
| 4 | A – 1 | 14 | 21E | ||||
| 5 | J – 2 | 10 | 26E | ||||
| 6 | B – 2 | 6 | 13E | ||||
| 7 | A – 2 | 8 | 48E | ||||
| 8 | F – 48 | -24 | 40E | ||||
| 9 | G – 34 | -16 | 11E | ||||
| 10 | ? – 2 | -15 | 74W | ||||
| 11 | A – 3 | 13 | 17W | ||||
| 12 | G – 10 | 21 | 43W | ||||
| 13 | C – 11 | 25 | 29W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.