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Sunspot region AR13644

Number of
sunspots		 Size Class Magn. Class Spot Location
2024/04/16 2 80 DSO N12E72
2024/04/17 2 80 DSO N12E58
2024/04/18 2 120 DSO N13E49
2024/04/19 2 120 DSO N12E35
2024/04/20 2 140 DSO N12E19
2024/04/21 2 150 DSO N12E05
2024/04/22 3 150 DAO N14W03
2024/04/23 6 80 DAO N13W15
2024/04/24 2 60 HSX N15W28
2024/04/25 2 40 HSX N13W42
2024/04/26 2 40 HSX N13W57
2024/04/27 2 10 BXO N13W70
2024/04/28 2 10 BXO N13W84
2024/04/29 2 10 BXO N13W97
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Space weather facts

Last X-flare2026/03/30X1.5
Last M-flare2026/04/04M1.0
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 2026118.8 +32.8
Last 30 days102.1 +47

This day in history*

Solar flares
12001X1.14
22000M4.54
32003M3.68
42002M3.12
52002M1.68
DstG
11984-100G3
21971-97G2
32006-82G2
41959-73G2
51995-68G1
*since 1994

Aurora on this day in history

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