Daily Sunspot Evaluation
Observation Sheet Saturday, 23 January 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)
- 9
- Number of spots (f)
- 67
- Relative number (R)
- 157
- Observer
- AB
- Reading
- all checks consistent
- File
- 19600123.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 3 | 12 | 13E | ||||
| 2 | D – 8 | 10 | 60E | ||||
| 3 | ? – 7 | 7 | 77E | ||||
| 4 | A – 1 | 2 | 63E | ||||
| 5 | C – 4 | -8 | 40E | ||||
| 6 | B – 9 | 7 | 57W | ||||
| 7 | B – 5 | 17 | 38W | ||||
| 8 | C – 19 | 27 | 18W | ||||
| 9 | H – 11 | 13 | 5W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.