Daily Sunspot Evaluation
Observation Sheet Sunday, 23 December 1951
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)
- 28
- Relative number (R)
- 48
- Observer
- AK
- Reading
- all checks consistent
- File
- 19511223.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | A – 4 | 0.85 | 282 | |
| 2 | E – 24 | 0.51 | 298 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.