Daily Sunspot Evaluation
Observation Sheet Monday, 30 April 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)
- 33
- Relative number (R)
- 93
- Observer
- KA
- Reading
- all checks consistent
- File
- 19560430.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | ? – 1 | 0.98 | 48 | |
| 2 | C – 7 | 0.95 | 84 | |
| 3 | B – 5 | 0.56 | 89 | |
| 4 | C – 17 | 0.42 | 220 | |
| 5 | J – 2 | 0.94 | 264 | |
| 6 | J – 1 | 0.6 | 296 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.