Daily Sunspot Evaluation
Observation Sheet Saturday, 16 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)
- 11
- Number of spots (f)
- 54
- Relative number (R)
- 164
- Observer
- AB
- Reading
- all checks consistent
- File
- 19600116.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 10 | 25 | 6E | ||||
| 2 | A – 1 | 8 | 11E | ||||
| 3 | ? – 1 | 30 | 72E | ||||
| 4 | J – 1 | 17 | 52E | ||||
| 5 | C – 14 | 7 | 38E | ||||
| 6 | H – 5 | 9 | 71E | ||||
| 7 | J – 1 | -17 | 26E | ||||
| 8 | C – 6 | -7 | 5W | ||||
| 9 | ? – 1 | -19 | 82W | ||||
| 10 | D – 12 | -13 | 42W | ||||
| 11 | H – 2 | 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.