Daily Sunspot Evaluation
Observation Sheet Sunday, 19 November 1972
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)
- 13
- Relative number (R)
- 53
- Observer
- HM
- Reading
- all checks consistent
- File
- 19721119.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 4 | -7 | 58E | 346 | |||
| 2 | ? – 1 | -10 | 83E | 321 | |||
| 3 | A – 3 | -17 | 02W | 46 | |||
| 4 | H – 5 | -14 | 13W | 57 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.