Daily Sunspot Evaluation
Observation Sheet Tuesday, 1 January 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)
- 61
- Relative number (R)
- 121
- Observer
- AK
- Reading
- all checks consistent
- File
- 19520101.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | A – 3 | 0.89 | 85 | |
| 2 | A – 4 | 0.82 | 114 | |
| 3 | B – 11 | 0.09 | 133 | |
| 4 | A – 1 | 0.36 | 269 | |
| 5 | E – 31 | 0.32 | 289 | |
| 6 | B – 11 | 0.3 | 355 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.