Daily Sunspot Evaluation
Observation Sheet Wednesday, 20 November 1968
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)
- 5
- Number of spots (f)
- 52
- Relative number (R)
- 102
- Observer
- SM
- Reading
- all checks consistent
- File
- 19681120.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 15 | -15 | 63E | 170 | |||
| 2 | A – 3 | -15 | 53W | 286 | |||
| 3 | A – 1 | 8 | 30W | 263 | |||
| 4 | C – 10 | 18 | 59W | 292 | |||
| 5 | H – 23 | 12 | 08W | 241 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.