Daily Sunspot Evaluation
Observation Sheet Thursday, 19 October 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)
- 6
- Number of spots (f)
- 24
- Relative number (R)
- 84
- Observer
- KA
- Reading
- all checks consistent
- File
- 19611019.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 9 | 10 | 3E | ||||
| 2 | A – 1 | 8 | 55E | ||||
| 3 | B – 5 | 7 | 68E | ||||
| 4 | ? – 5 | -8 | 68E | ||||
| 5 | B – 2 | -16 | 56E | ||||
| 6 | H – 2 | 17 | 43W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.