Daily Sunspot Evaluation
Observation Sheet Sunday, 30 June 1968
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)
- 7
- Number of spots (f)
- 46
- Relative number (R)
- 116
- Observer
- SM
- Reading
- counts consistent, some coordinates doubtful
- File
- 19680630.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 8 | 11E | 312 | |||
| 2 | A – 2 | -33 | 3E | 320 | |||
| 3 | A – 1 | -19 | 39W | 2 | |||
| 4 | B – 7 | -14 | 45W | 8 | |||
| 5 | D – 11 | -13 | 62W | 25 | |||
| 6 | H – 6 | 12 | 45W | 8 | |||
| 7 | D – 17 | 29 | 28W | 357 ⚠ | 0 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.