Daily Sunspot Evaluation
Observation Sheet Monday, 19 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)
- 43
- Relative number (R)
- 123
- Observer
- AK
- Reading
- all checks consistent
- File
- 19610619.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 4 | 25 | 42E | ||||
| 2 | B – 5 | 15 | 55E | ||||
| 3 | B – 10 | 14 | 2E | ||||
| 4 | C – 4 | -5 | 19E | ||||
| 5 | D – 3 | -12 | 53W | ||||
| 6 | F – 13 | -7 | 19W | ||||
| 7 | J – 2 | 2 | 58W | ||||
| 8 | A – 2 | 10 | 42W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.