Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on December 28, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 9290 | N30 | E33 | 06 | 0040 | Beta | Dec 31, 2000 | Jan 8, 2001 | Jan 22, 2001 |
| № 9289 | S08 | E66 | 12 | 0330 | Beta | Jan 3, 2001 | Jan 10, 2001 | Jan 23, 2001 |
| № 9288 | S21 | E15 | 02 | 0000 | Alpha | Dec 30, 2000 | Jan 6, 2001 | Jan 20, 2001 |
| № 9287 | S16 | E32 | 01 | 0000 | Alpha | Dec 31, 2000 | Jan 7, 2001 | Jan 21, 2001 |
| № 9285 | N08 | E22 | 12 | 0040 | Beta | Dec 31, 2000 | Jan 6, 2001 | Jan 20, 2001 |
| № 9283 | S11 | E13 | 21 | 0240 | Beta-Gamma | Dec 30, 2000 | Jan 6, 2001 | Jan 19, 2001 |
| № 9282 | N21 | W07 | 01 | 0030 | Alpha | Dec 28, 2000 | Jan 4, 2001 | Jan 18, 2001 |
| № 9280 | N10 | W29 | 25 | 0290 | Beta | Dec 27, 2000 | Jan 2, 2001 | Jan 16, 2001 |
| № 9279 | S10 | W62 | 01 | 0080 | Alpha | Dec 24, 2000 | Dec 31, 2000 | Jan 14, 2001 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1971 to December 2000. The gray background is the average SSN index.
