Daily Sunspot Evaluation
Observation Sheet Tuesday, 8 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)
- 4
- Number of spots (f)
- 27
- Relative number (R)
- 67
- Observer
- ED
- Reading
- all checks consistent
- File
- 19720808.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 11 | -9 | 60W | 23 | |||
| 2 | J – 2 | -4 | 67W | 30 | |||
| 3 | A – 1 | 9 | 31W | 354 | |||
| 4 | H – 13 | 14 | 47W | 10 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.