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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on November 25, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8781 | S13 | E73 | 01 | 0050 | ALPHA | Dec 1, 1999 | Dec 8, 1999 | Dec 22, 1999 |
| № 8780 | S11 | E53 | 03 | 0030 | BETA | Nov 30, 1999 | Dec 7, 1999 | Dec 20, 1999 |
| № 8779 | S09 | W25 | 02 | 0010 | BETA | Nov 24, 1999 | Dec 1, 1999 | Dec 14, 1999 |
| № 8778 | S15 | E25 | 16 | 0080 | BETA | Nov 28, 1999 | Dec 5, 1999 | Dec 18, 1999 |
| № 8776 | S28 | W27 | 06 | 0080 | BETA | Nov 24, 1999 | Dec 1, 1999 | Dec 15, 1999 |
| № 8773 | S15 | W25 | 04 | 0010 | BETA | Nov 24, 1999 | Dec 1, 1999 | Dec 14, 1999 |
| № 8772 | N06 | W06 | 03 | 0010 | ALPHA | Nov 25, 1999 | Dec 2, 1999 | Dec 16, 1999 |
| № 8771 | S15 | W38 | 18 | 0750 | BETA-GAMMA | Nov 23, 1999 | Nov 30, 1999 | Dec 13, 1999 |
| № 8766 | N18 | W74 | 03 | 0010 | BETA | Nov 20, 1999 | Nov 27, 1999 | Dec 11, 1999 |
| № 8765 | S13 | W96 | 01 | 0060 | ALPHA | Nov 19, 1999 | Nov 25, 1999 | Dec 9, 1999 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1970 to November 1999. The gray background is the average SSN index.
