Daily Sunspot Evaluation
Observation Sheet Tuesday, 4 October 1960
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)
- 18
- Relative number (R)
- 68
- Observer
- ET
- Reading
- all checks consistent
- File
- 19601004.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 4 | 6 | 16E | ||||
| 2 | ? – 1 | 11 | 77E | ||||
| 3 | ? – 1 | -17 | 71E | ||||
| 4 | C – 5 | -16 | 53E | ||||
| 5 | B – 7 | -17 | 27W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.