Daily Sunspot Evaluation
Observation Sheet Tuesday, 25 March 1958
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)
- 92
- Relative number (R)
- 222
- Observer
- AK
- Reading
- all checks consistent
- File
- 19580325.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 2 | 22 | 17E | ||||
| 2 | A – 5 | 22 | 36E | ||||
| 3 | C – 4 | -3 | 27E | ||||
| 4 | D – 8 | -3 | 49E | ||||
| 5 | F – 19 | -9 | 47E | ||||
| 6 | F – 15 | -16 | 65E | ||||
| 7 | B – 4 | -26 | 9W | ||||
| 8 | A – 1 | -17 | 7W | ||||
| 9 | J – 2 | -19 | 41W | ||||
| 10 | J – 1 | 33 | 73W | ||||
| 11 | C – 2 | 9 | 29W | ||||
| 12 | F – 11 | 20 | 37W | ||||
| 13 | F – 18 | 24 | 14W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.