Daily Sunspot Evaluation
Observation Sheet Saturday, 8 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)
- 8
- Number of spots (f)
- 24
- Relative number (R)
- 104
- Observer
- WG
- Reading
- all checks consistent
- File
- 19510908.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | Z – 2 | 0.98 | 109 | |
| 2 | J – 2 | 0.78 | 115 | |
| 3 | A – 1 | 0.6 | 129 | |
| 4 | H – 5 | 0.36 | 141 | |
| 5 | B – 3 | 0.38 | 173 | |
| 6 | C – 4 | 0.55 | 268 | |
| 7 | C – 4 | 0.58 | 298 | |
| 8 | A – 3 | 0.4 | 306 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.