Daily Sunspot Evaluation
Observation Sheet Friday, 7 September 1962
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)
- 32
- Relative number (R)
- 72
- Observer
- FY
- Reading
- all checks consistent
- File
- 19620907.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 8 | 6 | 7E | 4353 | |||
| 2 | A – 1 | -7 | 34E | ||||
| 3 | C – 12 | -13 | 28E | ||||
| 4 | E – 11 | 10 | 63W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.