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Sunspots and active regions — October 21, 2025

October 21, 2025

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Home Sunspots and active regions October 21, 2025

Sunspots and active regions

The following active regions with sunspot groups were visible on the Sun on October 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)
№ 4262 S12 E36 01 0150 Alpha Oct 25, 2025 Oct 31, 2025 Nov 14, 2025
№ 4261 S05 E68 02 0040 Beta Oct 27, 2025 Nov 3, 2025 Nov 16, 2025
№ 4260 S09 E48 01 0010 Alpha Oct 26, 2025 Nov 1, 2025 Nov 15, 2025
№ 4259 S20 E36 01 0010 Alpha Oct 25, 2025 Nov 1, 2025 Nov 14, 2025
№ 4257 S09 E36 03 0110 Beta Oct 25, 2025 Oct 31, 2025 Nov 14, 2025
№ 4256 S15 E13 04 0030 Alpha Oct 23, 2025 Oct 30, 2025 Nov 12, 2025
№ 4254 N10 W07 01 0080 Alpha Oct 21, 2025 Oct 28, 2025 Nov 11, 2025
№ 4252 S12 W41 01 0090 Alpha Oct 19, 2025 Oct 26, 2025 Nov 8, 2025
№ 4248 N06 W94 05 0380 Beta Oct 15, 2025 Oct 22, 2025 Nov 4, 2025

Solar cycle progression

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