Active areas
Sunspots and active regions
By the end of the day, the following active regions with sunspots could be observed on the Sun's surface
| Group ID | Location | Number of sunspots | Area (msh) | Type | CM Passage | Disappearance (W90) | Reappearance (W270) | |
|---|---|---|---|---|---|---|---|---|
| № 8781 | S13 | E58 | 01 | 0070 | ALPHA | Dec 1, 1999 | Dec 8, 1999 | Dec 22, 1999 |
| № 8780 | S11 | E38 | 01 | 0010 | ALPHA | Nov 30, 1999 | Dec 7, 1999 | Dec 20, 1999 |
| № 8779 | S09 | W44 | 06 | 0040 | BETA | Nov 24, 1999 | Nov 30, 1999 | Dec 14, 1999 |
| № 8778 | S14 | E10 | 26 | 0090 | BETA | Nov 28, 1999 | Dec 5, 1999 | Dec 18, 1999 |
| № 8776 | S28 | W42 | 03 | 0050 | BETA | Nov 24, 1999 | Dec 1, 1999 | Dec 15, 1999 |
| № 8773 | S15 | W39 | 05 | 0010 | BETA | Nov 24, 1999 | Dec 1, 1999 | Dec 15, 1999 |
| № 8772 | N07 | W20 | 04 | 0010 | ALPHA | Nov 25, 1999 | Dec 2, 1999 | Dec 16, 1999 |
| № 8771 | S15 | W51 | 21 | 0820 | BETA-GAMMA | Nov 23, 1999 | Nov 30, 1999 | Dec 14, 1999 |
Solar cycle progression
Average monthly sunspot number (SSN) from 1970, January to 1999, November. Gray background - average solar cycle.
