Daily Sunspot Evaluation
Observation Sheet Monday, 1 September 1980
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)
- 13
- Number of spots (f)
- 117
- Relative number (R)
- 247
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19800901.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AKK – 2 | 28 | 75W | 35 | 78W | 3 | |
| 2 | CAO – 7 | 10 | 52W | 12 | 55W | 6 | |
| 3 | DEO – 9 | 23 | 29W | 349 | 32W | 8 | |
| 4 | EKI – 16 | 12 | 22E | 298 | 19E | 11.5 | |
| 5 | AKK – 2 | 22 | 50E | 270 | 47E | 1 | |
| 6 | AKK – 1 | 11 | 50E | 270 | 47E | - | |
| 7 | CSO – 2 | 14 | 67E | 253 | 64E | 4 | |
| 8 | ? – 1 | 27 | 87E | 233 | 84E | - | |
| 9 | EHO – 6 | -28 | 44W | 4 | 47W | 13 | |
| 10 | AKS – 1 | -12 | 03W | 323 | 04W | - | |
| 11 | EKI – 60 | -7 | 20E | 300 | 17E | 13 | |
| 12 | DEO – 9 | -5 | 33E | 287 | 30E | 4 | |
| 13 | HJK – 1 | -11 | 58E | 262 | 55E | 1 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.