Daily Sunspot Evaluation
Observation Sheet Sunday, 12 October 1986
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)
- 11
- Relative number (R)
- 31
- Observer
- TÖ
- Reading
- all checks consistent
- File
- 19861012.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HAX – 1 | 35 | 76W | 95 | 78W | 2 | |
| 2 | CAI – 10 | -3 | 65W | 84 | 67W | 10 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.