Daily Sunspot Evaluation
Observation Sheet Saturday, 29 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)
- 4
- Number of spots (f)
- 75
- Relative number (R)
- 115
- Observer
- AT
- Reading
- all checks consistent
- File
- 19680629.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 7 | -16 | 32W | 9 | |||
| 2 | C – 16 | -14 | 47W | 24 | |||
| 3 | H – 25 | 13 | 32W | 9 | |||
| 4 | D – 27 | 29 | 15W | 352 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.