Daily Sunspot Evaluation
Observation Sheet Wednesday, 19 July 1961
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)
- 5
- Number of spots (f)
- 19
- Relative number (R)
- 69
- Observer
- AK
- Reading
- all checks consistent
- File
- 19610719.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 2 | 20 | 27E | ||||
| 2 | ? – 2 | 9 | 75E | ||||
| 3 | B – 6 | 2 | 50E | ||||
| 4 | ? – 6 | -7 | 75W | ||||
| 5 | T – 3 | 12 | 41W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.