Daily Sunspot Evaluation
Observation Sheet Sunday, 24 June 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)
- 4
- Number of spots (f)
- 36
- Relative number (R)
- 76
- Observer
- ET
- Reading
- all checks consistent
- File
- 19510624.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | J – 1 | 0.63 | 68 | |
| 2 | J – 4 | 0.4 | 169 | |
| 3 | ? – 24 | 0.95 | 252 | |
| 4 | H – 7 | 0.46 | 297 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.