Daily Sunspot Evaluation
Observation Sheet Sunday, 25 December 1983
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)
- 3
- Number of spots (f)
- 6
- Relative number (R)
- 36
- Observer
- HG
- Reading
- all checks consistent
- File
- 19831225.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 11 | 74E | 115 | 73E | 1 | 342 |
| 2 | BXO – 3 | 2 | 06W | 195 | 07W | 3 | 341 |
| 3 | ? – 2 | -12 | 78W | 267 | 79W | 7 | 339 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.