Daily Sunspot Evaluation
Observation Sheet Saturday, 27 July 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)
- 73
- Relative number (R)
- 143
- Observer
- DK
- Reading
- all checks consistent
- File
- 19680727.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 7 | 30 | 04E | 322 | |||
| 2 | H – 18 | 15 | 49E | 277 | |||
| 3 | E – 17 | -17 | 44W | 10 | |||
| 4 | ? – 2 | -18 | 78W | 44 | |||
| 5 | D – 15 | 8 | 48W | 14 | |||
| 6 | B – 12 | 11 | 16W | 342 | |||
| 7 | ? – 2 | 31 | 73W | 39 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.