Daily Sunspot Evaluation
Observation Sheet Saturday, 9 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)
- 12
- Number of spots (f)
- 129
- Relative number (R)
- 249
- Observer
- AB
- Reading
- all checks consistent
- File
- 19600109.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 9 | 20 | 32E | ||||
| 2 | B – 2 | 10 | 61E | ||||
| 3 | A – 2 | -3 | 7E | ||||
| 4 | F – 53 | -18 | 12E | ||||
| 5 | B – 4 | -24 | 5E | ||||
| 6 | H – 9 | -23 | 4W | ||||
| 7 | C – 12 | -19 | 35W | ||||
| 8 | C – 29 | -3 | 6W | ||||
| 9 | D – 3 | 7 | 71W | 1 | |||
| 10 | J – 1 | 7 | 48W | ||||
| 11 | A – 2 | 8 | 23W | ||||
| 12 | A – 3 | 27 | 20W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.