Daily Sunspot Evaluation
Observation Sheet Monday, 14 April 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)
- 9
- Number of spots (f)
- 130
- Relative number (R)
- 220
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19800414.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DKO – 9 | 20 | 29E | 342 | 27E | 8 | |
| 2 | DKC – 17 | 14 | 35E | 336 | 33E | 8 | |
| 3 | FKC – 13 | 24 | 75W | 86 | 77W | 20 | |
| 4 | AXX – 5 | -17 | 29E | 342 | 27E | 1.5 | |
| 5 | AXX – 1 | -22 | 40W | 51 | 42W | ||
| 6 | HKX – 4 | -20 | 28W | 39 | 30W | 3 | |
| 7 | DJI – 12 | -30 | 13W | 24 | 15W | 7 | |
| 8 | EKI – 30 | -32 | 03W | 14 | 05W | 13 | |
| 9 | EKC – 39 | -4 | 03W | 14 | 05W | 14 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.