Daily Sunspot Evaluation
Observation Sheet Monday, 16 December 1991
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)
- 60
- Relative number (R)
- 120
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 19911216.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | FKC – 22 | 9 | 45W | 305 | 46W | 16 | 670 |
| 2 | DSO – 4 | 21 | 23W | 283 | 24W | 5 | 671 |
| 3 | DAC – 10 | -17 | 08W | 268 | 09W | 6 | 681 |
| 4 | CHZ – 11 | -4 | 05W | 265 | 06W | 10 | 678 |
| 5 | DXZ – 7 | -17 | 11E | 249 | 10E | 7 | 679 |
| 6 | CKZ – 6 | -11 | 72E | 188 | 71E | 15 | 680 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.