Daily Sunspot Evaluation
Observation Sheet Monday, 9 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)
- 5
- Number of spots (f)
- 33
- Relative number (R)
- 83
- Observer
- GA
- Reading
- all checks consistent
- File
- 19790409.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 10 | 21 | 47E | 180 | 45E | 212 | |
| 2 | ? – 2 | 5 | 85E | 142 | 83E | 215 | |
| 3 | H – 8 | -26 | 25E | 202 | 23E | 207 | |
| 4 | A – 1 | -32 | 80W | 307 | 82W | 216 | |
| 5 | B – 12 | -13 | 45W | 272 | 47W | 211 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.