Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 18, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9278 | N09 | E69 | 02 | 0040 | Alpha | Dec 24, 2000 | Dec 31, 2000 | Jan 13, 2001 |
| № 9277 | N16 | W61 | 01 | 0010 | Alpha | Dec 14, 2000 | Dec 21, 2000 | Jan 4, 2001 |
| № 9276 | S14 | W70 | 07 | 0120 | Beta | Dec 14, 2000 | Dec 20, 2000 | Jan 3, 2001 |
| № 9275 | N21 | W43 | 07 | 0020 | Beta | Dec 16, 2000 | Dec 22, 2000 | Jan 5, 2001 |
| № 9273 | N19 | E45 | 02 | 0030 | Alpha | Dec 22, 2000 | Dec 29, 2000 | Jan 12, 2001 |
| № 9272 | N12 | W19 | 03 | 0010 | Beta | Dec 17, 2000 | Dec 24, 2000 | Jan 7, 2001 |
| № 9271 | S20 | W65 | 01 | 0010 | Alpha | Dec 14, 2000 | Dec 21, 2000 | Jan 4, 2001 |
| № 9269 | N14 | E11 | 17 | 0260 | Beta | Dec 20, 2000 | Dec 27, 2000 | Jan 9, 2001 |
| № 9268 | S18 | E25 | 01 | 0110 | Alpha | Dec 21, 2000 | Dec 28, 2000 | Jan 10, 2001 |
| № 9267 | N08 | W41 | 14 | 0150 | Beta | Dec 16, 2000 | Dec 23, 2000 | Jan 5, 2001 |
| № 9266 | N25 | W88 | 01 | 0060 | Alpha | Dec 12, 2000 | Dec 19, 2000 | Jan 2, 2001 |
| № 9265 | N15 | W17 | 02 | 0010 | Alpha | Dec 18, 2000 | Dec 24, 2000 | Jan 7, 2001 |
| № 9264 | S24 | W20 | 20 | 0200 | Beta-Gamma | Dec 17, 2000 | Dec 24, 2000 | Jan 7, 2001 |
| № 9262 | N16 | W42 | 11 | 0070 | Beta | Dec 16, 2000 | Dec 22, 2000 | Jan 5, 2001 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1971 to December 2000. The gray background is the average SSN index.
