Daily Sunspot Evaluation
Observation Sheet Friday, 27 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)
- 4
- Number of spots (f)
- 19
- Relative number (R)
- 59
- Observer
- WG
- Reading
- all checks consistent
- File
- 19550527.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | D – 11 | 0.63 | 17 | |
| 2 | A – 1 | 0.21 | 79 | |
| 3 | E – 2 | 0.98 | 277 | |
| 4 | C – 5 | 0.62 | 296 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.