Daily Sunspot Evaluation
Observation Sheet Tuesday, 2 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)
- 9
- Number of spots (f)
- 79
- Relative number (R)
- 169
- Observer
- ET
- Reading
- all checks consistent
- File
- 19561002.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | B – 14 | 20 | 61 | |
| 2 | B – 10 | -21 | 57 | |
| 3 | E – 16 | -28 | 36 | |
| 4 | B – 7 | 14 | 45 | |
| 5 | E – 9 | 18 | 61 | |
| 6 | A – 2 | 22 | 75 | |
| 7 | C – 8 | 45 | 65 | |
| 8 | H – 7 | 21 | 13 | |
| 9 | B – 6 | 17 | 1 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.