Daily Sunspot Evaluation
Observation Sheet Friday, 15 August 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)
- 3
- Number of spots (f)
- 51
- Relative number (R)
- 81
- Observer
- AK
- Reading
- all checks consistent
- File
- 19520815.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | D – 27 | 0.57 | 261 | |
| 2 | B – 2 | 0.74 | 270 | |
| 3 | G – 22 | 0.36 | 311 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.