Daily Sunspot Evaluation
Observation Sheet Monday, 14 July 1952
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)
- 7
- Number of spots (f)
- 73
- Relative number (R)
- 143
- Observer
- MH
- Reading
- all checks consistent
- File
- 19520714.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | G – 9 | 0.17 | 50 | |
| 2 | A – 1 | 0.75 | 79 | |
| 3 | B – 3 | 0.62 | 111 | |
| 4 | F – 54 | 0.24 | 125 | |
| 5 | B – 4 | 0.37 | 218 | |
| 6 | A – 1 | 0.83 | 260 | |
| 7 | A – 1 | 0.85 | 279 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.