Daily Sunspot Evaluation
Observation Sheet Thursday, 15 June 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)
- 8
- Number of spots (f)
- 111
- Relative number (R)
- 191
- Observer
- KA
- Reading
- all checks consistent
- File
- 19610615.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | F – 64 | 4 | 1E | ||||
| 2 | ? – 2 | -7 | 76E | ||||
| 3 | E – 36 | -9 | 38E | ||||
| 4 | A – 1 | -19 | 26E | ||||
| 5 | A – 2 | -6 | 43W | ||||
| 6 | B – 3 | -3 | 40W | ||||
| 7 | A – 2 | 13 | 73W | ||||
| 8 | A – 1 | 17 | 12W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.