Daily Sunspot Evaluation
Observation Sheet Saturday, 24 October 1981
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)
- 43
- Relative number (R)
- 123
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19811024.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAI – 8 | 20 | 47W | 249 | 50W | 4 | |
| 2 | CAI – 4 | 15 | 37E | 165 | 34E | 3 | |
| 3 | HKX – 1 | 14 | 82E | 120 | 79E | 3.5 | |
| 4 | FKC – 5 | -12 | 70W | 272 | 73W | - | |
| 5 | DAC – 10 | -8 | 48W | 250 | 51W | 7 | |
| 6 | AXX – 2 | -6 | 05W | 207 | 08W | 9 | |
| 7 | CAO – 8 | -28 | 17E | 185 | 14E | 9.5 | |
| 8 | AXX – 5 | -31 | 35E | 167 | 32E | 3 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.