Daily Sunspot Evaluation
Observation Sheet Tuesday, 28 June 1966
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)
- 12
- Relative number (R)
- 62
- Observer
- SK
- Reading
- all checks consistent
- File
- 19660628.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 3 | 34 | 43E | 235 | |||
| 2 | A – 1 | 14 | 34E | 244 | |||
| 3 | B – 4 | -26 | 03E | 275 | |||
| 4 | H – 2 | -24 | 45W | 323 | |||
| 5 | ? – 2 | 28 | 75W | 353 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.