Daily Sunspot Evaluation
Observation Sheet Thursday, 10 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)
- 15
- Relative number (R)
- 35
- Observer
- FL
- Reading
- all checks consistent
- File
- 19860710.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 7 | 6 | 42W | 224 | 44W | 4.5 | |
| 2 | DAO – 8 | -1 | 22E | 160 | 20E | 8.15 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.