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Sunspots and active regions — April 21, 2025

April 21, 2025

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Sunspots and active regions

The following active regions with sunspot groups were visible on the Sun on April 21, 2025. 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)
№ 4067 S03 E30 03 0040 Beta Apr 24, 2025 May 1, 2025 May 14, 2025
№ 4066 S04 E10 04 0020 Beta Apr 23, 2025 Apr 29, 2025 May 13, 2025
№ 4065 S29 E27 04 0080 Beta Apr 24, 2025 May 1, 2025 May 15, 2025
№ 4064 N11 E20 10 0330 Beta Apr 23, 2025 Apr 30, 2025 May 14, 2025
№ 4063 N04 W47 03 0010 Beta Apr 18, 2025 Apr 25, 2025 May 9, 2025
№ 4062 S03 W02 11 0270 Beta-Gamma Apr 22, 2025 Apr 28, 2025 May 12, 2025
№ 4060 N08 W67 03 0040 Beta Apr 17, 2025 Apr 24, 2025 May 7, 2025

Solar cycle progression

The average monthly sunspot number (SSN) from January 1996 to April 2025. The gray background is the average SSN index.