Daily Sunspot Evaluation
Observation Sheet Saturday, 4 December 1999
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)
- 7
- Number of spots (f)
- 37
- Relative number (R)
- 107
- Observer
- TA
- Reading
- all checks consistent
- File
- 19991204.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 8 | 84W | 97 | 87W | ~5 | |
| 2 | BXI – 5 | 28 | 26W | 39 | 29W | 4 | |
| 3 | AX – 2 | 39 | 18W | 31 | 21W | 1 | |
| 4 | HR – 2 | 11 | 27E | 346 | 24E | ~1 | |
| 5 | HA – 6 | 13 | 41E | 332 | 38E | ~3.5 | Hh-6 |
| 6 | FKO – 15 | 9 | 68E | 305 | 65E | 18 | |
| 7 | DKO – 6 | -13 | 47W | 60 | 50W | 10 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.