Daily Sunspot Evaluation
Observation Sheet Wednesday, 5 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)
- 8
- Number of spots (f)
- 99
- Relative number (R)
- 179
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19810805.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAC – 12 | 24 | 66W | 245 | 69W | 11 | |
| 2 | CAI – 15 | 20 | 40W | 219 | 43W | 7 | |
| 3 | CKI – 16 | 15 | 38W | 217 | 41W | 8 | |
| 4 | HKX – 4 | 10 | 53E | 126 | 50E | 3 | |
| 5 | ARX – 1 | -5 | 74W | 253 | 74W | - | |
| 6 | DAI – 12 | -8 | 63W | 242 | 66W | 12 | |
| 7 | BXO – 3 | -25 | 36E | 143 | 33E | 4 | |
| 8 | FKC – 36 | -9 | 65E | 114 | 62E | 20 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.