Daily Sunspot Evaluation
Observation Sheet Saturday, 20 October 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)
- 7
- Number of spots (f)
- 56
- Relative number (R)
- 126
- Observer
- FY
- Reading
- all checks consistent
- File
- 19561020.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 23 | 17E | ||||
| 2 | ? – 2 | 32 | 76E | ||||
| 3 | D – 16 | 17 | 53E | ||||
| 4 | C – 4 | -45 | 42E | ||||
| 5 | D – 19 | -10 | 26W | ||||
| 6 | ? – 3 | -21 | 70W | ||||
| 7 | C – 10 | 17 | 42W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.