Daily Sunspot Evaluation
Observation Sheet Tuesday, 22 August 1972
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)
- 46
- Relative number (R)
- 116
- Observer
- ED
- Reading
- all checks consistent
- File
- 19720822.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 14 | 10 | 27E | 111 | |||
| 2 | C – 10 | -4 | 30E | 108 | |||
| 3 | H – 2 | -15 | 60E | 78 | |||
| 4 | J – 1 | -19 | 73E | 65 | |||
| 5 | A – 3 | -13 | 52E | 86 | |||
| 6 | J – 5 | -25 | 28W | 166 | |||
| 7 | B – 11 | -12 | 44W | 182 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.