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Sunspots and active regions — November 21, 1999

November 21, 1999

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Sunspots and active regions

The following active regions with sunspot groups were visible on the Sun on November 21, 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)
№ 8776 S31 E21 05 0030 BETA Nov 24, 1999 Dec 1, 1999 Dec 15, 1999
№ 8775 S16 W34 01 0000 ALPHA Nov 20, 1999 Nov 26, 1999 Dec 10, 1999
№ 8774 N20 E53 03 0010 BETA Nov 26, 1999 Dec 3, 1999 Dec 17, 1999
№ 8773 S16 E22 05 0030 BETA Nov 24, 1999 Dec 1, 1999 Dec 14, 1999
№ 8772 N04 E39 04 0030 BETA Nov 25, 1999 Dec 2, 1999 Dec 15, 1999
№ 8771 S17 E09 20 0180 BETA-GAMMA Nov 23, 1999 Nov 30, 1999 Dec 13, 1999
№ 8770 S13 W83 07 0060 BETA Nov 16, 1999 Nov 23, 1999 Dec 6, 1999
№ 8769 S12 E07 03 0020 BETA Nov 23, 1999 Nov 30, 1999 Dec 13, 1999
№ 8768 N17 W57 05 0120 BETA Nov 18, 1999 Nov 25, 1999 Dec 8, 1999
№ 8766 N18 W28 26 0180 BETA-GAMMA Nov 20, 1999 Nov 27, 1999 Dec 11, 1999
№ 8765 S13 W50 36 0910 BETA-GAMMA-DELTA Nov 18, 1999 Nov 25, 1999 Dec 9, 1999

Solar cycle progression

The average monthly sunspot number (SSN) from January 1970 to November 1999. The gray background is the average SSN index.