Sunspot region AR9909

Number of
sunspots
Size Class Magn. Class Spot Location
2002/04/15 1 130 HSX N06E70
2002/04/16 1 180 HSX N11E56
2002/04/17 2 120 HAX N11E42
2002/04/18 3 100 CSO N08E28
2002/04/19 3 100 CSO N08E15
2002/04/20 4 120 CSO N07E02
2002/04/21 6 100 CAO N07W10
2002/04/22 2 50 HSX N07W24
2002/04/23 1 50 HSX N08W37
2002/04/24 1 40 HSX N08W50
2002/04/25 1 50 HSX N07W64
2002/04/26 1 20 HSX N08W76

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Space weather facts

Last X-flare2025/03/28X1.1
Last M-flare2025/04/01M2.5
Last geomagnetic storm2025/03/27Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
February 2025154.6 +17.6
April 2025147 -7.6
Last 30 days128.8 -21.8

This day in history*

Solar flares
12001X28.5
22001X2.01
32001X1.59
42014M9.35
52017M8.22
DstG
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*since 1994

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