Daily Sunspot Evaluation
Observation Sheet Wednesday, 25 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)
- 13
- Relative number (R)
- 63
- Observer
- SM
- Reading
- all checks consistent
- File
- 19690625.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 5 | 7 | 15E | 237 | |||
| 2 | ? – 1 | -12 | 82E | 170 | |||
| 3 | B – 3 | -21 | 72W | 324 | |||
| 4 | J – 2 | -15 | 71W | 323 | |||
| 5 | H – 2 | 9 | 77W | 329 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.