Daily Sunspot Evaluation
Observation Sheet Saturday, 22 August 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)
- 8
- Number of spots (f)
- 64
- Relative number (R)
- 144
- Observer
- SK
- Reading
- all checks consistent
- File
- 19700822.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 13 | 15 | 28E | 39 | |||
| 2 | C – 5 | 13 | 15E | 52 | |||
| 3 | H – 2 | 11 | 76E | 351 | |||
| 4 | H – 4 | 6 | 40E | 27 | |||
| 5 | A – 2 | -6 | 13E | 54 | |||
| 6 | D – 15 | -6 | 14W | 81 | |||
| 7 | H – 10 | 8 | 26W | 93 | |||
| 8 | E – 13 | 22 | 06W | 73 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.