Daily Sunspot Evaluation
Observation Sheet Thursday, 19 January 1956
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)
- 89
- Relative number (R)
- 149
- Observer
- AK
- Reading
- all checks consistent
- File
- 19560119.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | F – 51 | 0.49 | 16 | |
| 2 | J – 1 | 0.82 | 47 | |
| 3 | E – 12 | 0.91 | 52 | |
| 4 | B – 4 | 0.77 | 230 | |
| 5 | G – 16 | 0.55 | 350 | |
| 6 | H – 5 | 0.49 | 356 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.