Sunspot region AR9387

Number of
sunspots
Size Class Magn. Class Spot Location
2001/03/20 3 30 CSO N09E59
2001/03/21 5 90 DAO N10E47
2001/03/22 13 110 DAO N09E34
2001/03/23 18 140 CAO N08E21
2001/03/24 11 140 DSO N09E07
2001/03/25 11 150 DSO N08W07
2001/03/26 7 110 CSO N08W23
2001/03/27 2 160 CSO N09W38
2001/03/28 1 130 HSX N09W52
2001/03/29 4 150 CSO N08W66
2001/03/30 1 110 HSX N08W80
2001/03/31 1 60 HSX N08W92

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Space weather facts

Last X-flare2026/03/30X1.5
Last M-flare2026/04/03M1.3
Last geomagnetic storm2026/04/02Kp6- (G2)
Spotless days
Last 365 days3 days
20263 days (3%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
February 202678.2 -34.3
April 2026141 +62.8
Last 30 days94.6 +27

This day in history*

Solar flares
12001X1.77
22017M8.35
31999M6.2
42001M3.57
52017M1.81
DstG
11979-168G4
21960-151G3
31992-105G2
42004-104G2
51994-103G3
*since 1994

Aurora on this day in history

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