Daily Sunspot Evaluation
Observation Sheet Sunday, 24 May 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)
- 9
- Number of spots (f)
- 44
- Relative number (R)
- 134
- Observer
- OG
- Reading
- all checks consistent
- File
- 19810524.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 3 | 15 | 83W | 148 | 86W | 4 | |
| 2 | CAI – 13 | 18 | 16E | 49 | 13E | 8.5 | |
| 3 | CAO – 7 | 3 | 47E | 18 | 44E | 5 | |
| 4 | CSI – 6 | 12 | 53E | 12 | 50E | 5 | |
| 5 | ? – 4 | -22 | 75W | 140 | 78W | 6 | |
| 6 | HKI – 7 | -25 | 53W | 118 | 56W | 6 | |
| 7 | AXX – 1 | -16 | 27E | 38 | 24E | ||
| 8 | AXX – 2 | -9 | 29E | 36 | 26E | 1 | |
| 9 | ? – 1 | -7 | 85E | 340 | 82E |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.