Daily Sunspot Evaluation
Observation Sheet Friday, 23 May 1969
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)
- 10
- Number of spots (f)
- 79
- Relative number (R)
- 179
- Observer
- DK
- Reading
- all checks consistent
- File
- 19690523.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 13 | 10 | 0 | 327 | |||
| 2 | D – 13 | 8 | 17E | 310 | |||
| 3 | C – 5 | 14 | 31E | 296 | |||
| 4 | J – 1 | 11 | 53E | 274 | |||
| 5 | H – 10 | -16 | 10E | 317 | |||
| 6 | C – 3 | -26 | 09W | 336 | |||
| 7 | D – 14 | -20 | 14W | 341 | |||
| 8 | F – 16 | -13 | 11W | 338 | |||
| 9 | A – 1 | -12 | 30W | 357 | |||
| 10 | G – 3 | 14 | 27W | 354 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.