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Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on November 15, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8768 | N17 | E35 | 08 | 0030 | BETA | Nov 19, 1999 | Nov 25, 1999 | Dec 9, 1999 |
| № 8767 | N43 | W28 | 04 | 0020 | BETA | Nov 14, 1999 | Nov 21, 1999 | Dec 6, 1999 |
| № 8766 | N17 | E59 | 09 | 0190 | BETA-DELTA | Nov 20, 1999 | Nov 27, 1999 | Dec 11, 1999 |
| № 8765 | S14 | E34 | 31 | 0640 | BETA-GAMMA | Nov 18, 1999 | Nov 25, 1999 | Dec 9, 1999 |
| № 8763 | S15 | E20 | 11 | 0070 | BETA-GAMMA | Nov 17, 1999 | Nov 24, 1999 | Dec 8, 1999 |
| № 8760 | N15 | W57 | 18 | 0460 | BETA | Nov 12, 1999 | Nov 18, 1999 | Dec 2, 1999 |
| № 8759 | N11 | W19 | 56 | 0270 | BETA-GAMMA | Nov 14, 1999 | Nov 21, 1999 | Dec 5, 1999 |
| № 8755 | N23 | W46 | 01 | 0070 | ALPHA | Nov 12, 1999 | Nov 19, 1999 | Dec 3, 1999 |
| № 8753 | N22 | W78 | 04 | 0010 | BETA | Nov 10, 1999 | Nov 17, 1999 | Dec 1, 1999 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1970 to November 1999. The gray background is the average SSN index.
