Daily Sunspot Evaluation
Observation Sheet Sunday, 27 May 1951
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)
- 36
- Relative number (R)
- 86
- Observer
- WG
- Reading
- all checks consistent
- File
- 19510527.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | J – 6 | 0.81 | 56 | |
| 2 | H – 6 | 0.35 | 140 | |
| 3 | ? – 1 | 0.96 | 237 | |
| 4 | J – 2 | 0.55 | 241 | |
| 5 | F – 21 | 0.9 | 274 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.