Daily Sunspot Evaluation
Observation Sheet Tuesday, 15 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)
- 7
- Relative number (R)
- 27
- Observer
- HM
- Reading
- all checks consistent
- File
- 19860715.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CSI – 5 | 0 | 44W | 160 | 47W | 9 | |
| 2 | DAO – 2 | 7 | 83E | 33 | 80E | 8 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.