Sunspot region AR9721

Number of
sunspots
Size Class Magn. Class Spot Location
2001/11/29 1 120 HAX N10E78
2001/11/30 3 130 CAO N12E70
2001/12/01 3 140 DSO N13E57
2001/12/02 4 160 DAO N13E43
2001/12/03 7 170 CAO N13E30
2001/12/04 6 190 CAO N13E16
2001/12/05 3 200 CSO N12E02
2001/12/06 1 210 HSX N11W11
2001/12/07 3 220 HSX N11W25
2001/12/08 4 130 CAO N12W37
2001/12/09 4 100 DAO N11W52
2001/12/10 3 110 DAO N11W64
2001/12/11 2 100 DSO N11W79
2001/12/12 2 60 DSO N11W93

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Space weather facts

Last X-flare2026/03/30X1.5
Last M-flare2026/04/09M1.0
Last geomagnetic storm2026/04/03Kp7- (G3)
Spotless days
Last 365 days3 days
20263 days (3%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
March 202685.9 +7.7
April 202688.1 +2.2
Last 30 days93.2 +32.7

This day in history*

Solar flares
12022X1.1
22022M4.4
32002M3.79
42001M1.97
52022M1.89
DstG
11994-201G4
21990-113G2
32002-98G3
41999-91G3
52015-79G1
*since 1994

Aurora on this day in history

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