Daily Sunspot Evaluation
Observation Sheet Friday, 12 July 1985
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)
- 3
- Number of spots (f)
- 30
- Relative number (R)
- 60
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19850712.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DSI – 10 | 3 | 40W | 333 | 43W | 6.95 | |
| 2 | ? – 2 | -9 | 80W | 13 | 83W | -3.5 | |
| 3 | DKC – 18 | -17 | 67W | 0 | 70W | 65.33 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.