Daily Sunspot Evaluation
Observation Sheet Friday, 12 November 1954
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)
- 25
- Relative number (R)
- 65
- Observer
- ET
- Reading
- all checks consistent
- File
- 19541112.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | A – 1 | 0.39 | 117 | |
| 2 | L – 4 | 0.81 | 141 | |
| 3 | D – 15 | 0.75 | 242 | |
| 4 | B – 5 | 0.55 | 340 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.