Daily Sunspot Evaluation
Observation Sheet Thursday, 1 August 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)
- 63
- Relative number (R)
- 103
- Observer
- MÖ
- Reading
- all checks consistent
- File
- 19680801.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 7 | 22 | 50E | 210 | |||
| 2 | D – 29 | 7 | 20W | 280 | |||
| 3 | D – 23 | 15 | 19W | 279 | |||
| 4 | C – 4 | 31 | 59W | 319 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.