Daily Sunspot Evaluation
Observation Sheet Thursday, 6 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)
- 4
- Number of spots (f)
- 18
- Relative number (R)
- 58
- Observer
- KA
- Reading
- all checks consistent
- File
- 19610706.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 8 | 13 | 5E | ||||
| 2 | ? – 2 | 3 | 79E | ||||
| 3 | C – 6 | 20 | 55W | ||||
| 4 | C – 2 | 12 | 20W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.