Daily Sunspot Evaluation
Observation Sheet Friday, 22 November 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)
- 15
- Number of spots (f)
- 138
- Relative number (R)
- 288
- Observer
- ET
- Reading
- all checks consistent
- File
- 19571122.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 2 | 20 | 24E | ||||
| 2 | C – 7 | 10 | 20E | ||||
| 3 | C – 16 | -10 | 14E | ||||
| 4 | B – 18 | -14 | 20E | ||||
| 5 | J – 4 | -13 | 36E | ||||
| 6 | H – 12 | -13 | 46E | ||||
| 7 | A – 2 | -10 | 56E | ||||
| 8 | C – 10 | -14 | 63E | ||||
| 9 | ? – 1 | -22 | 75E | ||||
| 10 | B – 5 | -22 | 52W | ||||
| 11 | A – 4 | -7 | 58W | ||||
| 12 | C – 7 | 12 | 62W | ||||
| 13 | B – 11 | 25 | 42W | ||||
| 14 | C – 26 | 27 | 30W | ||||
| 15 | E – 13 | 16 | 17W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.