Daily Sunspot Evaluation
Observation Sheet Thursday, 19 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)
- 32
- Relative number (R)
- 82
- Observer
- SM
- Reading
- all checks consistent
- File
- 19690619.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 23 | 10 | 04E | 327 | |||
| 2 | J – 1 | -14 | 05E | 326 | |||
| 3 | A – 3 | 17 | 58W | 28 | |||
| 4 | A – 1 | 9 | 23W | 353 | |||
| 5 | B – 4 | 24 | 57W | 27 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.