Daily Sunspot Evaluation
Observation Sheet Monday, 16 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)
- 1
- Number of spots (f)
- 53
- Relative number (R)
- 63
- Observer
- WG
- Reading
- all checks consistent
- File
- 19510716.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | G – 53 | 0.45 | 244 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.