Daily Sunspot Evaluation
Observation Sheet Monday, 12 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)
- 4
- Number of spots (f)
- 26
- Relative number (R)
- 66
- Observer
- AK
- Reading
- all checks consistent
- File
- 19610612.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 15 | 2 | 43E | ||||
| 2 | ? – 3 | -10 | 80E | ||||
| 3 | J – 1 | -19 | 66E | ||||
| 4 | A – 7 | 1 | 60W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.