Daily Sunspot Evaluation
Observation Sheet Sunday, 30 September 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)
- 41
- Relative number (R)
- 131
- Observer
- ET
- Reading
- all checks consistent
- File
- 19560930.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 33 | 14E | ||||
| 2 | H – 3 | 21 | 11E | ||||
| 3 | A – 1 | 39 | 58E | ||||
| 4 | E – 20 | -28 | 11W | ||||
| 5 | J – 1 | -13 | 27W | ||||
| 6 | A – 2 | -18 | 48W | ||||
| 7 | D – 8 | 18 | 36W | ||||
| 8 | J – 1 | 22 | 50W | ||||
| 9 | A – 3 | 35 | 32W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.