Daily Sunspot Evaluation
Observation Sheet Wednesday, 26 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)
- 21
- Relative number (R)
- 41
- Observer
- TS
- Reading
- all checks consistent
- File
- 19870826.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAO – 9 | 19 | 66W | 209 | 69W | 8.68 | 60 |
| 2 | BRI – 12 | 17 | 20E | 123 | 17E | 4.67 | 59 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.