Daily Sunspot Evaluation
Observation Sheet Saturday, 16 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)
- 35
- Relative number (R)
- 75
- Observer
- ET
- Reading
- all checks consistent
- File
- 19520816.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 6 | 0.19 | 57 | ||||
| 2 | ? – 1 | 0.98 | 121 | ||||
| 3 | D – 18 | 0.76 | 269 | ||||
| 4 | H – 10 | 0.56 | 302 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.