Daily Sunspot Evaluation
Observation Sheet Monday, 10 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)
- 3
- Number of spots (f)
- 74
- Relative number (R)
- 104
- Observer
- MA
- Reading
- counts consistent, some coordinates doubtful
- File
- 19700810.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 20 | 18 | 27E | 193 ⚠ | |||
| 2 | D – 23 | -6 | 22W | 248 | |||
| 3 | E – 31 | 17 | 10W | 236 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.