Daily Sunspot Evaluation
Observation Sheet Tuesday, 22 July 1969
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)
- 5
- Number of spots (f)
- 29
- Relative number (R)
- 79
- Observer
- AT
- Reading
- all checks consistent
- File
- 19690722.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 17 | 41 | 13E | 240 | |||
| 2 | A – 2 | 40 | 50E | 203 | |||
| 3 | ? – 1 | -17 | 70E | 183 | |||
| 4 | A – 2 | -15 | 07W | 260 | |||
| 5 | C – 7 | -17 | 49W | 302 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.