Daily Sunspot Evaluation
Observation Sheet Wednesday, 26 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)
- 16
- Number of spots (f)
- 168
- Relative number (R)
- 328
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19810826.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EDAI – 8 | 10 | 48W | 310 | 5W | 6 | |
| 2 | EAC – 27 | 11 | 15W | 277 | 18W | 14 | |
| 3 | DAC – 17 | 20 | 17E | 245 | 14W | 75 | |
| 4 | FKI – 37 | 16 | 38E | 224 | 35E | 173 | |
| 5 | CKI – 14 | 15 | 61E | 201 | 58E | ||
| 6 | HHX – 1 | -2 | 65W | 327 | 68W | 3 | |
| 7 | EDKO – 6 | -17 | 60W | 322 | 63W | 10 | |
| 8 | AXX – 1 | -17 | 35W | 297 | 38W | ||
| 9 | ARI – 7 | -3 | 34W | 296 | 37W | 3 | |
| 10 | AXX – 5 | -11 | 32W | 294 | 35W | 2 | |
| 11 | DKC – 28 | -10 | 22W | 284 | 25W | 10 | |
| 12 | CAI – 10 | -10 | 09W | 271 | 12W | 5 | |
| 13 | AXX – 1 | -9 | 01E | 261 | 02W | ||
| 14 | AXX – 4 | -5 | 12E | 250 | 09E | 25 | |
| 15 | AXX – 1 | -12 | 49E | 213 | 46E | ||
| 16 | ? – 1 | -10 | 85E | 177 | 82E |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.