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Sunspots and active regions — January 31, 2001

January 31, 2001

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Home Sunspots and active regions January 31, 2001

Sunspots and active regions

The following active regions with sunspot groups were visible on the Sun on January 31, 2001. 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)
№ 9332 N08 E26 03 0020 Beta Feb 3, 2001 Feb 10, 2001 Feb 23, 2001
№ 9331 N13 E29 03 0050 Beta Feb 3, 2001 Feb 10, 2001 Feb 23, 2001
№ 9330 N24 E69 01 0100 Alpha Feb 6, 2001 Feb 13, 2001 Feb 27, 2001
№ 9329 S10 E38 05 0020 Beta Feb 4, 2001 Feb 11, 2001 Feb 24, 2001
№ 9328 N06 W85 03 0050 Alpha Jan 25, 2001 Feb 1, 2001 Feb 15, 2001
№ 9327 N18 E08 09 0050 Beta Feb 1, 2001 Feb 8, 2001 Feb 22, 2001
№ 9325 N10 W02 04 0030 Beta Feb 1, 2001 Feb 7, 2001 Feb 21, 2001
№ 9321 S06 W49 20 0150 Beta Jan 28, 2001 Feb 4, 2001 Feb 17, 2001

Solar cycle progression

The average monthly sunspot number (SSN) from January 1972 to January 2001. The gray background is the average SSN index.