Daily Sunspot Evaluation
Observation Sheet Saturday, 5 September 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)
- 15
- Relative number (R)
- 35
- Observer
- TÖ
- Reading
- all checks consistent
- File
- 19870905.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ARX – 1 | -25 | 04E | 4 | 03E | 0.5 | 63 |
| 2 | DAG – 14 | -22 | 26E | 342 | 25E | 12 | 64 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.