Daily Sunspot Evaluation
Observation Sheet Friday, 4 September 1959
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)
- 11
- Number of spots (f)
- 102
- Relative number (R)
- 212
- Observer
- FY
- Reading
- all checks consistent
- File
- 19590904.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 22 | 25E | ||||
| 2 | J – 1 | 21 | 31E | ||||
| 3 | C – 14 | 15 | 55E | ||||
| 4 | C – 16 | -10 | 14E | ||||
| 5 | D – 5 | -7 | 46W | ||||
| 6 | J – 1 | -3 | 54W | ||||
| 7 | ? – 3 | -11 | 83W | ||||
| 8 | F – 14 | 9 | 46W | ||||
| 9 | E – 33 | 13 | 32W | ||||
| 10 | G – 11 | 18 | 13W | ||||
| 11 | B – 3 | 18 | 62W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.