Daily Sunspot Evaluation
Observation Sheet Thursday, 25 April 1985
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)
- 2
- Number of spots (f)
- 32
- Relative number (R)
- 52
- Observer
- HM
- Reading
- all checks consistent
- File
- 19850425.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ARX – 3 | 1 | 65W | 310 | 68W | 2.05 | |
| 2 | EKX – 29 | 4 | 13E | 232 | 10E | 11.5.83 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.