Daily Sunspot Evaluation
Observation Sheet Saturday, 12 July 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)
- 6
- Number of spots (f)
- 56
- Relative number (R)
- 116
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19800712.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EKI – 17 | 18 | 10W | 284 | 13W | 15 | |
| 2 | DKC – 11 | 18 | 41E | 233 | 38E | 10 | |
| 3 | AKK – 3 | 23 | 48E | 226 | 45E | - | |
| 4 | HAK – 1 | -12 | 03W | 277 | 06W | 2 | |
| 5 | HAK – 2 | -4 | 06E | 268 | 03E | 1 | |
| 6 | EKI – 22 | -13 | 66E | 208 | 63E | 11 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.