Daily Sunspot Evaluation
Observation Sheet Saturday, 14 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)
- 4
- Number of spots (f)
- 59
- Relative number (R)
- 99
- Observer
- WG
- Reading
- all checks consistent
- File
- 19510714.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | E – 50 | 0.25 | 170 | |
| 2 | B – 6 | 0.62 | 284 | |
| 3 | ? – 1 | 0.95 | 285 | |
| 4 | C – 2 | 0.3 | 289 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.