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Sunspots and active regions — January 11, 1999

January 11, 1999

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Sunspots and active regions

The following active regions with sunspot groups were visible on the Sun on January 11, 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)
№ 8437 N11 E64 01 0090 ALPHA Jan 17, 1999 Jan 24, 1999 Feb 7, 1999
№ 8436 S31 E47 01 0010 ALPHA Jan 16, 1999 Jan 23, 1999 Feb 6, 1999
№ 8433 S28 W36 02 0020 ALPHA Jan 10, 1999 Jan 17, 1999 Jan 31, 1999
№ 8431 S28 W11 05 0040 BETA Jan 11, 1999 Jan 18, 1999 Feb 2, 1999
№ 8426 N14 W78 03 0050 BETA Jan 6, 1999 Jan 13, 1999 Jan 27, 1999

Solar cycle progression

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