Daily Sunspot Evaluation
Observation Sheet Thursday, 26 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)
- 59
- Relative number (R)
- 139
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19790426.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 4 | 21 | 02E | 2 | 01W | 231 | |
| 2 | E – 28 | 19 | 32E | 332 | 29E | 234 | |
| 3 | D – 4 | 25 | 68E | 296 | 65E | 239 | |
| 4 | D – 3 | 16 | 80E | 284 | 77E | 238 | |
| 5 | H – 14 | -24 | 45E | 319 | 42E | 237 | |
| 6 | A – 2 | -24 | 31E | 333 | 28E | 240 | |
| 7 | A – 3 | -18 | 18W | 22 | 21W | 235 | |
| 8 | D – 1 | 4 | 15W | 19 | 18W | 226 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.