Daily Sunspot Evaluation
Observation Sheet Saturday, 8 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)
- 6
- Number of spots (f)
- 91
- Relative number (R)
- 151
- Observer
- HM
- Reading
- all checks consistent
- File
- 19810808.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HKX – 2 | 15 | 81W | 220 | 84W | 6 | |
| 2 | CHI – 9 | 10 | 16E | 123 | 13E | 10 | |
| 3 | DSO – 4 | 25 | 51E | 88 | 48E | 6 | |
| 4 | BRI – 14 | -25 | 04W | 143 | 04W | 11 | |
| 5 | FKC – 59 | -10 | 22E | 117 | 19E | 22 | |
| 6 | AXX – 3 | -12 | 56E | 83 | 53E | 3 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.