Daily Sunspot Evaluation
Observation Sheet Wednesday, 16 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)
- 44
- Relative number (R)
- 104
- Observer
- ET
- Reading
- all checks consistent
- File
- 19520116.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | A – 1 | 0.31 | 26 | |
| 2 | C – 12 | 0.66 | 76 | |
| 3 | C – 5 | 0.84 | 278 | |
| 4 | C – 7 | 0.55 | 256 | |
| 5 | H – 14 | 0.33 | 297 | |
| 6 | A – 5 | 0.22 | 309 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.