Daily Sunspot Evaluation
Observation Sheet Friday, 24 May 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)
- 14
- Number of spots (f)
- 71
- Relative number (R)
- 211
- Observer
- WG
- Reading
- all checks consistent
- File
- 19570524.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 24 | 16 | 7E | ||||
| 2 | J – 2 | 21 | 43E | ||||
| 3 | A – 1 | 22 | 54E | ||||
| 4 | D – 4 | -12 | 27E | ||||
| 5 | J – 1 | -23 | 71E | ||||
| 6 | J – 3 | -11 | 1E | ||||
| 7 | A – 1 | -14 | 7W | ||||
| 8 | A – 1 | -39 | 11W | ||||
| 9 | D – 19 | -18 | 26W | ||||
| 10 | B – 2 | -22 | 58W | ||||
| 11 | C – 3 | -18 | 70W | ||||
| 12 | B – 2 | -14 | 73W | ||||
| 13 | A – 1 | -12 | 57W | ||||
| 14 | D – 7 | 8 | 46W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.