Daily Sunspot Evaluation
Observation Sheet Saturday, 11 December 1993
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)
- 3
- Number of spots (f)
- 23
- Relative number (R)
- 53
- Observer
- MB
- Reading
- all checks consistent
- File
- 19931211.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CSO – 6 | -10 | 46W | 85 | 48W | 7.5 | 278 |
| 2 | AX – 1 | -9 | 52W | 91 | 54W | - | 283 |
| 3 | CRI – 16 | -22 | 44W | 83 | 46W | 8.5 | 277 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.