Daily Sunspot Evaluation
Observation Sheet Sunday, 14 December 1952
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)
- 6
- Number of spots (f)
- 30
- Relative number (R)
- 90
- Observer
- AK
- Reading
- all checks consistent
- File
- 19521214.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | H – 5 | 0.8 | 93 | |
| 2 | A – 1 | 0.83 | 95 | |
| 3 | C – 7 | 0.96 | 110 | |
| 4 | C – 9 | 0.65 | 115 | |
| 5 | C – 7 | 0.76 | 115 | |
| 6 | J – 1 | 0.78 | 292 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.