Daily Sunspot Evaluation
Observation Sheet Sunday, 10 November 1991
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)
- 8
- Number of spots (f)
- 94
- Relative number (R)
- 174
- Observer
- MB
- Reading
- all checks consistent
- File
- 19911110.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 4 | 5 | 06W | 21 | 08W | 1 | 615 |
| 2 | CAI – 21 | 21 | 02E | 13 | 00 | 8 | 614 |
| 3 | DKC – 28 | 20 | 14E | 1 | 12E | 7 | 624 |
| 4 | BRO – 7 | 9 | 35E | 340 | 33E | 5 | 628 |
| 5 | EKO – 10 | -17 | 73W | 88 | 75W | 14 | 610 |
| 6 | BXI – 11 | -9 | 39W | 54 | 41W | 6 | 612 |
| 7 | AR – 3 | -18 | 41E | 334 | 39E | 3.5 | 629 |
| 8 | HK – 10 | -12 | 58E | 317 | 56E | 6.5 | 630 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.