Daily Sunspot Evaluation
Observation Sheet Tuesday, 1 July 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)
- 4
- Number of spots (f)
- 20
- Relative number (R)
- 60
- Observer
- AK
- Reading
- all checks consistent
- File
- 19520701.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | B – 3 | 0.27 | 137 | |
| 2 | C – 7 | 0.24 | 165 | |
| 3 | E – 9 | 0.51 | 242 | |
| 4 | A – 1 | 0.39 | 295 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.