Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 4, 2000. Coordinates are given as of the end of the day.
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 9255 | N21 | E66 | 01 | 0010 | Alpha | Dec 10, 2000 | Dec 17, 2000 | Dec 31, 2000 |
| № 9254 | N10 | E61 | 01 | 0010 | Alpha | Dec 9, 2000 | Dec 16, 2000 | Dec 30, 2000 |
| № 9253 | S14 | E13 | 02 | 0020 | Beta | Dec 6, 2000 | Dec 13, 2000 | Dec 26, 2000 |
| № 9252 | S02 | W34 | 04 | 0020 | Beta | Dec 2, 2000 | Dec 9, 2000 | Dec 23, 2000 |
| № 9251 | S22 | W32 | 05 | 0030 | Beta | Dec 2, 2000 | Dec 9, 2000 | Dec 23, 2000 |
| № 9250 | S11 | W78 | 01 | 0000 | Alpha | Nov 29, 2000 | Dec 6, 2000 | Dec 19, 2000 |
| № 9248 | N05 | W52 | 05 | 0020 | Beta | Dec 1, 2000 | Dec 8, 2000 | Dec 21, 2000 |
| № 9246 | S12 | W19 | 17 | 0130 | Beta | Dec 3, 2000 | Dec 10, 2000 | Dec 24, 2000 |
| № 9245 | N04 | E02 | 01 | 0020 | Alpha | Dec 5, 2000 | Dec 12, 2000 | Dec 25, 2000 |
| № 9243 | S10 | W51 | 06 | 0030 | Beta | Dec 1, 2000 | Dec 8, 2000 | Dec 21, 2000 |
| № 9242 | N20 | W52 | 10 | 0180 | Beta | Dec 1, 2000 | Dec 8, 2000 | Dec 22, 2000 |
| № 9240 | N09 | W72 | 01 | 0140 | Alpha | Nov 29, 2000 | Dec 6, 2000 | Dec 20, 2000 |
| № 9239 | S21 | W80 | 02 | 0020 | Alpha | Nov 29, 2000 | Dec 6, 2000 | Dec 19, 2000 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1971 to December 2000. The gray background is the average SSN index.
