Daily Sunspot Evaluation
Observation Sheet Saturday, 21 June 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)
- 5
- Number of spots (f)
- 26
- Relative number (R)
- 76
- Observer
- MÖ
- Reading
- all checks consistent
- File
- 19690621.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | -16 | 20W | 325 | |||
| 2 | A – 7 | 3 | 20W | 325 | |||
| 3 | A – 1 | 8 | 49W | 354 | |||
| 4 | E – 16 | 9 | 21W | 326 | |||
| 5 | ? – 1 | 24 | 80W | 25 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.