Daily Sunspot Evaluation
Observation Sheet Wednesday, 22 July 1970
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)
- 9
- Number of spots (f)
- 62
- Relative number (R)
- 152
- Observer
- SK
- Reading
- all checks consistent
- File
- 19700722.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 3 | 23 | 74E | 43 | |||
| 2 | H – 3 | 19 | 71E | 46 | |||
| 3 | F – 40 | 10 | 26E | 91 | |||
| 4 | H – 2 | -12 | 69E | 48 | |||
| 5 | A – 1 | -14 | 04E | 113 | |||
| 6 | A – 6 | -9 | 40W | 157 | |||
| 7 | ? – 1 | -18 | 78W | 195 | |||
| 8 | ? – 1 | 18 | 80W | 197 | |||
| 9 | B – 5 | 17 | 20W | 137 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.