Daily Sunspot Evaluation
Observation Sheet Tuesday, 12 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)
- 7
- Number of spots (f)
- 106
- Relative number (R)
- 176
- Observer
- HÇ0
- Reading
- all checks consistent
- File
- 19911112.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 2 | 4 | 31W | 21 | 34W | - | 615 |
| 2 | DAI – 20 | 20 | 25W | 15 | 28W | 9 | 614 |
| 3 | DKC – 39 | 19 | 12W | 2 | 15W | 8 | 627 |
| 4 | DKC – 20 | 9 | 09E | 341 | 06E | 10 | 628 |
| 5 | AX – 4 | -5 | 51W | 41 | 54W | 1 | 632 |
| 6 | AX – 3 | -21 | 28E | 324 | 25E | 2 | 633 |
| 7 | DKC – 18 | -13 | 35E | 317 | 30E | 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.