Sunspot region AR9100

Number of
sunspots
Size Class Magn. Class Spot Location
2000/07/23 1 40 HSX S32E60
2000/07/24 1 70 HSX S31E47
2000/07/25 11 100 EAO S32E40
2000/07/26 11 130 ESO S33E26
2000/07/27 9 130 ESO S32E13
2000/07/28 8 130 CSO S31W02
2000/07/29 2 120 CSO S30W15
2000/07/30 3 90 CSO S29W28
2000/07/31 1 120 HSX S29W43
2000/08/01 1 90 HSX S28W57
2000/08/02 1 100 HSX S28W71
2000/08/03 1 60 HSX S29W81
C
2

The top 2 solar flares from sunspot region 9100

Start Maximum End
1C4.012000/07/2415:5516:0016:21
2C3.362000/07/2907:0907:1507:18

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Space weather facts

Last X-flare2026/04/24X2.5
Last M-flare2026/04/27M1.0
Last geomagnetic storm2026/04/20Kp5 (G1)
Spotless days
Last 365 days3 days
20263 days (3%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
March 202685.9 +7.7
April 202685 -0.9
Last 30 days90 +4.9

This day in history*

Solar flares
12001M1.01
22024C8.3
32024C7.7
42024C7.6
52000C7.46
DstG
11960-147G3
21969-99G3
31985-98G3
41979-88G1
51989-74G1
*since 1994

Aurora on this day in history

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