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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on November 30, 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 | W27 | 16 | 0090 | BETA | Nov 29, 1999 | Dec 6, 1999 | Dec 19, 1999 |
| № 8781 | S13 | E09 | 23 | 0230 | BETA | Dec 2, 1999 | Dec 8, 1999 | Dec 22, 1999 |
| № 8778 | S14 | W47 | 19 | 0160 | BETA | Nov 27, 1999 | Dec 4, 1999 | Dec 18, 1999 |
| № 8773 | S11 | W85 | 03 | 0010 | BETA | Nov 25, 1999 | Dec 1, 1999 | Dec 15, 1999 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1970 to November 1999. The gray background is the average SSN index.
