Daily Sunspot Evaluation
Observation Sheet Tuesday, 6 August 1991
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)
- 10
- Number of spots (f)
- 43
- Relative number (R)
- 143
- Observer
- AÖ0
- Reading
- counts consistent, some coordinates doubtful
- File
- 19910806.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 1 | 8 | 44W | 218 ⚠ | 47W | 0.5 | 426 |
| 2 | EKC – 21 | 23 | 40W | 244 | 43W | 15 | 413 |
| 3 | AR – 2 | 33 | 09W | 213 | 12W | 1 | 427 |
| 4 | HA – 1 | 11 | 39E | 165 | 36E | 1.5 | 422 |
| 5 | ? – 2 | 9 | 82E | 122 | 79E | 5 | 428 |
| 6 | HA – 1 | -18 | 44W | 248 | 47W | 2 | 414 |
| 7 | HA – 4 | -11 | 31W | 235 | 34W | 1 | 420 |
| 8 | HA – 4 | -32 | 19E | 185 | 16E | 3 | 421 |
| 9 | HA – 3 | -24 | 42E | 162 | 39E | 2 | 423 |
| 10 | DAO – 4 | -13 | 68E | 136 | 65E | 5 | 423 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.