Daily Sunspot Evaluation
Observation Sheet Wednesday, 16 January 1957
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)
- 6
- Number of spots (f)
- 21
- Relative number (R)
- 81
- Observer
- AK
- Reading
- all checks consistent
- File
- 19570116.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 3 | 13 | 10E | ||||
| 2 | ? – 1 | 18 | 77E | ||||
| 3 | B – 2 | -9 | 11E | ||||
| 4 | H – 11 | -27 | 31E | ||||
| 5 | A – 2 | -24 | 25E | ||||
| 6 | ? – 2 | -12 | 77W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.