Daily Sunspot Evaluation
Observation Sheet Monday, 3 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)
- 2
- Number of spots (f)
- 16
- Relative number (R)
- 36
- Observer
- FL
- Reading
- all checks consistent
- File
- 19870803.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAI – 10 | 16 | 34W | 122 | 38W | 9.57 | 51 |
| 2 | DAI – 6 | -23 | 42E | 46 | 38E | 8.60 | 52 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.