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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on November 11, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8764 | N17 | W15 | 03 | 0010 | BETA | Nov 11, 1999 | Nov 18, 1999 | Dec 1, 1999 |
| № 8763 | S13 | E74 | 11 | 0120 | BETA | Nov 18, 1999 | Nov 24, 1999 | Dec 8, 1999 |
| № 8762 | N06 | W46 | 04 | 0010 | BETA | Nov 9, 1999 | Nov 15, 1999 | Nov 29, 1999 |
| № 8761 | N20 | E25 | 08 | 0030 | BETA | Nov 14, 1999 | Nov 21, 1999 | Dec 5, 1999 |
| № 8760 | N13 | W04 | 60 | 0520 | BETA-GAMMA | Nov 12, 1999 | Nov 19, 1999 | Dec 2, 1999 |
| № 8759 | N10 | E32 | 73 | 0870 | BETA-GAMMA | Nov 14, 1999 | Nov 21, 1999 | Dec 5, 1999 |
| № 8758 | N18 | E13 | 09 | 0040 | BETA | Nov 13, 1999 | Nov 20, 1999 | Dec 4, 1999 |
| № 8757 | N38 | W55 | 09 | 0090 | BETA | Nov 8, 1999 | Nov 15, 1999 | Nov 30, 1999 |
| № 8755 | N22 | E04 | 01 | 0080 | ALPHA | Nov 12, 1999 | Nov 19, 1999 | Dec 3, 1999 |
| № 8754 | S07 | W14 | 01 | 0020 | ALPHA | Nov 11, 1999 | Nov 18, 1999 | Dec 1, 1999 |
| № 8753 | N19 | W24 | 42 | 0200 | BETA | Nov 10, 1999 | Nov 17, 1999 | Dec 1, 1999 |
| № 8751 | N23 | W78 | 02 | 0010 | BETA | Nov 6, 1999 | Nov 13, 1999 | Nov 27, 1999 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1970 to November 1999. The gray background is the average SSN index.
