Daily Sunspot Evaluation
Observation Sheet Sunday, 16 August 1964
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)
- 2
- Number of spots (f)
- 11
- Relative number (R)
- 31
- Observer
- AÖ
- Reading
- all checks consistent
- File
- 19640816.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 5 | 8 | 3E | ||||
| 2 | D – 6 | 25 | 75W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.