Daily Sunspot Evaluation
Observation Sheet Sunday, 22 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)
- 8
- Number of spots (f)
- 27
- Relative number (R)
- 107
- Observer
- ED
- Reading
- all checks consistent
- File
- 19790422.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 1 | 5 | 08E | 48 | 06E | 226 | |
| 2 | D – 7 | 23 | 49E | 7 | 47E | 231 | |
| 3 | D – 1 | 20 | 83E | 333 | 81E | 234 | |
| 4 | A – 1 | -26 | 74W | 130 | 76W | 222 | |
| 5 | A – 2 | -17 | 70W | 126 | 72W | 229 | |
| 6 | B – 5 | 16 | 48W | 104 | 50W | 233 | |
| 7 | D – 6 | 26 | 70W | 126 | 72W | 221 | |
| 8 | A – 4 | 23 | 06W | 62 | 08W | 232 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.