Daily Sunspot Evaluation
Observation Sheet Saturday, 3 October 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
- TÖ
- Reading
- all checks consistent
- File
- 19871003.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAO – 13 | 31 | 25E | 333 | 25E | 10 | 72 |
| 2 | BRO – 3 | 35 | 66E | 292 | 66E | 8 | 75 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.