Daily Sunspot Evaluation
Observation Sheet Friday, 22 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)
- 17
- Relative number (R)
- 87
- Observer
- YK
- Reading
- all checks consistent
- File
- 19911122.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 1 | 7 | 10W | 228 | 42W | - | 635 |
| 2 | BXO – 4 | 24 | 29E | 189 | 27E | 5.5 | 646 |
| 3 | CAI – 2 | 16 | 58E | 160 | 56E | 8 | 647 |
| 4 | HS – 3 | -17 | 23W | 241 | 25W | 1 | 639 |
| 5 | DAO – 3 | -11 | 20E | 198 | 18E | 8.5 | 640 |
| 6 | AX – 2 | -8 | 36E | 182 | 34E | 2 | 644 |
| 7 | AX – 2 | -12 | 37E | 181 | 35E | 0.5 | 645 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.