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Sunspot region AR11742

Number of
sunspots		 Size Class Magn. Class Spot Location
2013/05/09 12 50 DAI N30E49
2013/05/10 6 100 DAO N30E36
2013/05/11 4 50 DAO N30E22
2013/05/12 5 50 CAO N30E10
2013/05/13 5 50 CAO N30E10
2013/05/14 1 10 HRX N29W19
2013/05/15 1 10 HRX N29W19
C
2

The top 2 solar flares from sunspot region 11742

Start Maximum End
1C1.932013/05/0920:2820:3120:34
2C1.792013/05/1005:0605:0905:15
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AR4416 13Planet-moon interactions and space weather 2Incoming & Unnumbered Active Regions 266Unspecified geomagnetic activity 151Filaments and prominences 543
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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 2026101.7 +15.8
Last 30 days97.5 +41.1

This day in history*

Solar flares
12001X2.9
22002M5.79
32013M4.79
42025M2.7
52025M2.3
DstG
12001-236G3
21990-174G4
31981-163G3
42014-87G1
51978-80G3
*since 1994

Aurora on this day in history

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