Daily Sunspot Evaluation
Observation Sheet Saturday, 7 April 1979
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)
- 34
- Relative number (R)
- 94
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19790407.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 3 | 20 | 73E | 181 | 70E | 212 | |
| 2 | B – 2 | -26 | 64E | 190 | 61E | 213 | |
| 3 | D – 7 | -26 | 51E | 203 | 48E | 207 | |
| 4 | A – 1 | -33 | 65W | 319 | 68W | 206 | |
| 5 | F – 17 | -26 | 64W | 318 | 67W | 192 | |
| 6 | B – 4 | -13 | 18W | 272 | 21W | 211 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.