Daily Sunspot Evaluation
Observation Sheet Tuesday, 24 July 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)
- 6
- Number of spots (f)
- 26
- Relative number (R)
- 86
- Observer
- ET
- Reading
- all checks consistent
- File
- 19510724.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | C – 5 | 0.74 | 109 | |
| 2 | A – 2 | 0.53 | 116 | |
| 3 | C – 11 | 0.19 | 120 | |
| 4 | A – 4 | 0.55 | 233 | |
| 5 | A – 2 | 0.24 | 234 | |
| 6 | B – 2 | 0.1 | 357 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.