Daily Sunspot Evaluation
Observation Sheet Monday, 30 May 1955
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)
- 3
- Number of spots (f)
- 20
- Relative number (R)
- 50
- Observer
- AK
- Reading
- all checks consistent
- File
- 19550530.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | A – 1 | 0.95 | 280 | |
| 2 | D – 14 | 0.55 | 326 | |
| 3 | B – 5 | 0.45 | 353 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.