Daily Sunspot Evaluation
Observation Sheet Monday, 25 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)
- 6
- Number of spots (f)
- 46
- Relative number (R)
- 106
- Observer
- ET
- Reading
- all checks consistent
- File
- 19520825.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 5 | 0.39 | 93 | ||||
| 2 | C – 13 | 0.2 | 98 | ||||
| 3 | C – 17 | 0.36 | 108 | ||||
| 4 | D – 9 | 0.4 | 137 | ||||
| 5 | A – 1 | 0.77 | 255 | ||||
| 6 | A – 1 | 0.72 | 295 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.