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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on November 29, 1999. 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8782 | N10 | W13 | 09 | 0040 | BETA | Nov 29, 1999 | Dec 6, 1999 | Dec 19, 1999 |
| № 8781 | S13 | E22 | 27 | 0170 | BETA | Dec 2, 1999 | Dec 8, 1999 | Dec 22, 1999 |
| № 8780 | S11 | W03 | 02 | 0000 | ALPHA | Nov 30, 1999 | Dec 7, 1999 | Dec 20, 1999 |
| № 8779 | S10 | W83 | 01 | 0040 | ALPHA | Nov 24, 1999 | Dec 1, 1999 | Dec 14, 1999 |
| № 8778 | S14 | W33 | 31 | 0200 | BETA-GAMMA | Nov 28, 1999 | Dec 4, 1999 | Dec 18, 1999 |
| № 8776 | S26 | W83 | 03 | 0090 | BETA | Nov 24, 1999 | Dec 1, 1999 | Dec 15, 1999 |
| № 8773 | S12 | W71 | 03 | 0020 | BETA | Nov 25, 1999 | Dec 1, 1999 | Dec 15, 1999 |
| № 8772 | N07 | W55 | 01 | 0000 | ALPHA | Nov 26, 1999 | Dec 3, 1999 | Dec 16, 1999 |
| № 8771 | S15 | W85 | 06 | 0170 | BETA | Nov 24, 1999 | Nov 30, 1999 | Dec 14, 1999 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1970 to November 1999. The gray background is the average SSN index.
