Daily Sunspot Evaluation
Observation Sheet Saturday, 17 March 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)
- 5
- Number of spots (f)
- 63
- Relative number (R)
- 113
- Observer
- KA
- Reading
- all checks consistent
- File
- 19560317.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | J – 3 | 0.66 | 14 | |
| 2 | C – 10 | 0.72 | 30 | |
| 3 | E – 9 | 0.49 | 90 | |
| 4 | H – 3 | 0.22 | 163 | |
| 5 | E – 38 | 0.47 | 325 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.