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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on November 1, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8751 | N21 | E51 | 01 | 0040 | ALPHA | Nov 6, 1999 | Nov 13, 1999 | Nov 27, 1999 |
| № 8750 | S16 | W21 | 03 | 0000 | BETA | Nov 1, 1999 | Nov 7, 1999 | Nov 21, 1999 |
| № 8749 | S18 | E12 | 15 | 0060 | BETA | Nov 3, 1999 | Nov 10, 1999 | Nov 24, 1999 |
| № 8748 | N19 | W23 | 05 | 0010 | BETA | Oct 31, 1999 | Nov 7, 1999 | Nov 21, 1999 |
| № 8747 | N11 | E14 | 12 | 0160 | BETA | Nov 3, 1999 | Nov 10, 1999 | Nov 24, 1999 |
| № 8745 | S15 | W03 | 06 | 0080 | BETA | Nov 2, 1999 | Nov 9, 1999 | Nov 22, 1999 |
| № 8744 | N10 | W41 | 02 | 0010 | ALPHA | Oct 30, 1999 | Nov 6, 1999 | Nov 20, 1999 |
| № 8743 | S15 | W64 | 05 | 0110 | BETA | Oct 28, 1999 | Nov 4, 1999 | Nov 18, 1999 |
| № 8742 | N09 | W27 | 20 | 0200 | BETA | Oct 31, 1999 | Nov 7, 1999 | Nov 21, 1999 |
| № 8741 | S25 | W57 | 07 | 0140 | BETA | Oct 29, 1999 | Nov 5, 1999 | Nov 19, 1999 |
| № 8739 | S11 | W81 | 08 | 0180 | BETA | Oct 27, 1999 | Nov 3, 1999 | Nov 17, 1999 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1970 to November 1999. The gray background is the average SSN index.
