Daily Sunspot Evaluation
Observation Sheet Sunday, 27 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)
- 19
- Number of spots (f)
- 188
- Relative number (R)
- 378
- Observer
- AK
- Reading
- all checks consistent
- File
- 19571027.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 16 | 21 | 2E | ||||
| 2 | J – 1 | 14 | 7E | ||||
| 3 | D – 17 | 25 | 37E | ||||
| 4 | C – 6 | 12 | 16E | ||||
| 5 | B – 6 | 15 | 42E | ||||
| 6 | A – 3 | 10 | 22E | ||||
| 7 | A – 4 | 14 | 60E | ||||
| 8 | E – 21 | -14 | 61E | ||||
| 9 | C – 22 | -22 | 59E | ||||
| 10 | H – 18 | -12 | 2E | ||||
| 11 | C – 35 | -23 | 20W | ||||
| 12 | A – 1 | 14 | 70W | ||||
| 13 | A – 2 | 12 | 33W | ||||
| 14 | D – 18 | 12 | 23W | ||||
| 15 | C – 5 | 23 | 53W | ||||
| 16 | B – 2 | 25 | 72W | ||||
| 17 | A – 1 | 24 | 42W | ||||
| 18 | C – 2 | 21 | 30W | ||||
| 19 | C – 8 | 23 | 18W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.