Daily Sunspot Evaluation
Observation Sheet Saturday, 12 July 1986
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)
- 2
- Number of spots (f)
- 21
- Relative number (R)
- 41
- Observer
- HG
- Reading
- all checks consistent
- File
- 19860712.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 7 | 6 | 70W | 225 | 73W | 7 5 | |
| 2 | CAI – 14 | 0 | 05W | 160 | 08W | 7 7 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.