Daily Sunspot Evaluation
Observation Sheet Saturday, 5 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)
- 8
- Number of spots (f)
- 107
- Relative number (R)
- 187
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19800405.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DKI – 10 | 27 | 46W | 176 | 49W | 6 | |
| 2 | EKC – 54 | 13 | 25E | 103 | 24E | 10 | |
| 3 | HSX – 1 | 15 | 34E | 94 | 33E | 0.5 | |
| 4 | FCC – 30 | 23 | 43E | 85 | 42E | 16 | |
| 5 | AXX – 1 | 20 | 73E | 55 | 72E | - | |
| 6 | EHO – 8 | -14 | 55W | 183 | 56W | 12 | |
| 7 | HSX – 2 | -10 | 09W | 137 | 10W | 1.5 | |
| 8 | ? – 1 | -20 | 87E | 41 | 86E | - |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.