Daily Sunspot Evaluation
Observation Sheet Wednesday, 9 June 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)
- 3
- Number of spots (f)
- 7
- Relative number (R)
- 37
- Observer
- MA
- Reading
- all checks consistent
- File
- 19710609.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | G – 3 | -6 | 11W | 199 | |||
| 2 | H – 1 | 0 | 34W | 222 | |||
| 3 | A – 3 | 15 | 34W | 222 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.