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Sunspots and active regions — September 23, 1998

September 23, 1998

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Home Sunspots and active regions September 23, 1998

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Sunspots and active regions

The following active regions with sunspot groups were visible on the Sun on September 23, 1998. 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)
№ 8344 S20 E20 05 0010 BETA Sep 26, 1998 Oct 3, 1998 Oct 16, 1998
№ 8343 N39 E23 08 0020 BETA Sep 26, 1998 Oct 3, 1998 Oct 18, 1998
№ 8342 N18 W02 08 0070 BETA Sep 24, 1998 Oct 1, 1998 Oct 15, 1998
№ 8340 N20 E09 28 0380 BETA Sep 25, 1998 Oct 2, 1998 Oct 16, 1998
№ 8339 S16 W27 10 0050 BETA Sep 22, 1998 Sep 29, 1998 Oct 13, 1998
№ 8338 N32 E03 01 0070 ALPHA Sep 24, 1998 Oct 2, 1998 Oct 16, 1998
№ 8336 S29 W29 13 0070 BETA Sep 22, 1998 Sep 29, 1998 Oct 13, 1998
№ 8335 S20 W70 01 0050 ALPHA Sep 19, 1998 Sep 26, 1998 Oct 9, 1998

Solar cycle progression

The average monthly sunspot number (SSN) from January 1969 to September 1998. The gray background is the average SSN index.