No image for the selected date
Sunspots and active regions
The following active regions with sunspot groups were visible on the Sun on November 17, 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) | |
|---|---|---|---|---|---|---|---|---|
| № 8770 | S14 | W22 | 05 | 0040 | BETA | Nov 16, 1999 | Nov 23, 1999 | Dec 7, 1999 |
| № 8769 | S10 | E66 | 01 | 0080 | ALPHA | Nov 23, 1999 | Nov 30, 1999 | Dec 13, 1999 |
| № 8768 | N17 | E06 | 12 | 0090 | BETA | Nov 18, 1999 | Nov 25, 1999 | Dec 9, 1999 |
| № 8767 | N42 | W53 | 06 | 0020 | BETA | Nov 14, 1999 | Nov 21, 1999 | Dec 6, 1999 |
| № 8766 | N18 | E32 | 20 | 0330 | BETA-GAMMA-DELTA | Nov 20, 1999 | Nov 27, 1999 | Dec 11, 1999 |
| № 8765 | S12 | E07 | 38 | 0930 | BETA-GAMMA-DELTA | Nov 18, 1999 | Nov 25, 1999 | Dec 9, 1999 |
| № 8763 | S13 | W06 | 04 | 0040 | BETA | Nov 17, 1999 | Nov 24, 1999 | Dec 8, 1999 |
| № 8760 | N15 | W82 | 10 | 0450 | BETA | Nov 12, 1999 | Nov 19, 1999 | Dec 2, 1999 |
| № 8759 | N12 | W44 | 34 | 0200 | BETA-GAMMA | Nov 15, 1999 | Nov 21, 1999 | Dec 5, 1999 |
| № 8755 | N22 | W71 | 01 | 0070 | ALPHA | Nov 12, 1999 | Nov 19, 1999 | Dec 3, 1999 |
Solar cycle progression
The average monthly sunspot number (SSN) from January 1970 to November 1999. The gray background is the average SSN index.
