Daily Sunspot Evaluation
Observation Sheet Saturday, 3 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)
- 8
- Number of spots (f)
- 68
- Relative number (R)
- 148
- Observer
- SG0
- Reading
- all checks consistent
- File
- 19910803.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EKO – 29 | 22 | 01W | 244 | 04W | 13.5 | 413 |
| 2 | HA – 1 | 33 | 28E | 215 | 25E | 1 | 416 |
| 3 | AX – 2 | 11 | 80E | 163 | 77E | 2 | 422 |
| 4 | DAI – 11 | -18 | 32W | 275 | 35W | 4.5 | 407 |
| 5 | DAC – 15 | -17 | 02E | 241 | 01W | 9.5 | 414 |
| 6 | CAO – 5 | -12 | 11E | 232 | 08E | 3.5 | 420 |
| 7 | CAO – 4 | -32 | 61E | 182 | 58E | 7.5 | 421 |
| 8 | ? – 1 | -24 | 79E | 164 | 76E | 3 | 423 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.