Daily Sunspot Evaluation
Observation Sheet Monday, 19 November 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)
- 6
- Number of spots (f)
- 19
- Relative number (R)
- 79
- Observer
- ET
- Reading
- all checks consistent
- File
- 19511119.jpg
Sunspot groups
| No | Group (class – spots) | r | p | Margin no. |
|---|---|---|---|---|
| 1 | J – 1 | 0.84 | 87 | |
| 2 | J – 2 | 0.68 | 88 | |
| 3 | A – 1 | 0.8 | 91 | |
| 4 | B – 7 | 0.52 | 97 | |
| 5 | A – 3 | 0.72 | 258 | |
| 6 | C – 5 | 0.35 | 303 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.