Daily Sunspot Evaluation
Observation Sheet Sunday, 8 August 1971
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)
- 45
- Relative number (R)
- 95
- Observer
- SM
- Reading
- all checks consistent
- File
- 19710808.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 3 | -11 | 40E | 74 | |||
| 2 | D – 24 | -11 | 24E | 90 | |||
| 3 | H – 3 | -9 | 16E | 98 | |||
| 4 | A – 3 | 10 | 35W | 149 | |||
| 5 | C – 12 | 12 | 06W | 120 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.