Daily Sunspot Evaluation
Observation Sheet Thursday, 7 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)
- 4
- Number of spots (f)
- 17
- Relative number (R)
- 57
- Observer
- WG
- Reading
- all checks consistent
- File
- 19520807.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | J – 1 | 0.75 | 98 | |
| 2 | A – 1 | 0.78 | 114 | |
| 3 | J – 1 | 0.87 | 115 | |
| 4 | C – 14 | 0.3 | 281 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.