Daily Sunspot Evaluation
Observation Sheet Sunday, 25 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)
- 11
- Number of spots (f)
- 118
- Relative number (R)
- 228
- Observer
- MÖ
- Reading
- all checks consistent
- File
- 19690525.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 4 | 11 | 04E | 299 | |||
| 2 | C – 8 | 12 | 17E | 286 | E | ||
| 3 | J – 2 | 12 | 27E | 276 | |||
| 4 | H – 10 | -15 | 18W | 321 | E | ||
| 5 | A – 5 | -27 | 32W | 335 | |||
| 6 | E – 30 | -20 | 40W | 343 | |||
| 7 | E – 17 | -13 | 39W | 340 | |||
| 8 | C – 4 | 6 | 46W | 349 | |||
| 9 | A – 2 | 15 | 52W | 355 | |||
| 10 | B – 12 | 11 | 26W | 329 | |||
| 11 | C – 24 | 8 | 10W | 313 | E |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.