Daily Sunspot Evaluation
Observation Sheet Friday, 1 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)
- 11
- Number of spots (f)
- 126
- Relative number (R)
- 236
- Observer
- YK
- Reading
- all checks consistent
- File
- 19911101.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXO – 3 | 5 | 80W | 214 | 82W | 5 | 606 |
| 2 | EKC – 33 | 17 | 30E | 104 | 28E | 14.5 | 595 |
| 3 | CAO – 7 | 9 | 11E | 123 | 09E | 6 | 607 |
| 4 | AX – 1 | -7 | 79W | 213 | 81W | - | 603 |
| 5 | FAC – 43 | -12 | 52W | 186 | 54W | 21 | 593 |
| 6 | FAO – 4 | -20 | 51W | 185 | 53W | 17 | 596 |
| 7 | CAI – 11 | -16 | 31W | 165 | 33W | 8.5 | 608 |
| 8 | CAO – 8 | -13 | 05W | 139 | 07W | 5.5 | 604 |
| 9 | DAI – 14 | -10 | 21E | 113 | 19E | 9.5 | 605 |
| 10 | AX – 1 | -19 | 35E | 99 | 33E | - | 609 |
| 11 | AR – 1 | -15 | 37E | 97 | 35E | 0.5 | 610 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.