Daily Sunspot Evaluation
Observation Sheet Saturday, 22 August 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)
- 15
- Number of spots (f)
- 126
- Relative number (R)
- 276
- Observer
- AÖ0
- Reading
- counts consistent, some coordinates doubtful
- File
- 19810822.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 10 | 10 | 03E | 309 | 03E | 8 | |
| 2 | DAI – 7 | 12 | 41E | 273 | 39E | 6 | |
| 3 | DAC – 8 | 20 | 66E | 248 | 64E | 7 | |
| 4 | ? – 1 | 17 | 85E | 229 | 83E | - | |
| 5 | FKC – 20 | -15 | 56W | 10 | 58W | 20 | |
| 6 | HSX – 3 | -8 | 28W | 342 | 30W | 2 | |
| 7 | AXX – 1 | -5 | 21W | 335 | 23W | - | |
| 8 | HHX – 1 | -2 | 12W | 386 ⚠ | 14W | 25 | |
| 9 | CKI – 13 | -17 | 10W | 324 | 12W | 14 | |
| 10 | HAX – 1 | -10 | 03W | 317 | 05W | 075 | |
| 11 | AXX – 1 | -3 | 16E | 298 | 14E | - | |
| 12 | DAC – 14 | -9 | 20E | 294 | 18E | 65 | |
| 13 | DKI – 22 | -12 | 32E | 282 | 30E | 10 | |
| 14 | DAI – 20 | -9 | 49E | 265 | 47E | 14.5 | |
| 15 | ARI – 4 | -16 | 64E | 250 | 62E | 4 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.