Daily Sunspot Evaluation
Observation Sheet Monday, 30 March 1953
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)
- 22
- Relative number (R)
- 72
- Observer
- AK
- Reading
- all checks consistent
- File
- 19530330.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | C – 6 | 0.66 | 40 | |
| 2 | C – 6 | 0.94 | 62 | |
| 3 | C – 4 | 0.73 | 70 | |
| 4 | A – 1 | 0.84 | 73 | |
| 5 | B – 5 | 0.57 | 277 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.