Daily Sunspot Evaluation
Observation Sheet Wednesday, 24 June 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)
- 7
- Number of spots (f)
- 88
- Relative number (R)
- 158
- Observer
- GT
- Reading
- all checks consistent
- File
- 19810624.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HSX – 2 | 16 | 33W | 48 | 36W | 1 | |
| 2 | EKC – 56 | 14 | 18E | 357 | 15E | 10.9 | |
| 3 | ? – 6 | 18 | 75E | 300 | 72E | 8.5 | |
| 4 | ? – 3 | -20 | 79W | 94 | 82W | 8 | |
| 5 | CAI – 12 | -14 | 03E | 12 | 00 | 6 | |
| 6 | AXX – 4 | -9 | 36E | 339 | 33E | 2 | |
| 7 | BXI – 5 | -6 | 45E | 330 | 42E | 4.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.