Daily Sunspot Evaluation
Observation Sheet Monday, 3 September 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)
- 3
- Number of spots (f)
- 17
- Relative number (R)
- 47
- Observer
- MH
- Reading
- all checks consistent
- File
- 19510903.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | G – 13 | 0.55 | 103 | |
| 2 | J – 1 | 0.6 | 130 | |
| 3 | B – 3 | 0.29 | 331 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.