Daily Sunspot Evaluation
Observation Sheet Monday, 10 August 1987
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)
- 26
- Relative number (R)
- 56
- Observer
- FL
- Reading
- all checks consistent
- File
- 19870810.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AXX – 3 | 6 | 67W | 60 | 69W | 1.61 | 53 |
| 2 | EKI – 18 | -24 | 52W | 45 | 54W | 12.560 | 52 |
| 3 | DKS – 5 | -27 | 71E | 282 | 69E | 7.62 | 54 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.