Sunspot region AR11157

Number of
sunspots
Size Class Magn. Class Spot Location
2011/02/09 3 10 CRO N22E36
2011/02/10 7 20 CSO N22E22
2011/02/11 7 20 CRO N22E08
2011/02/12 2 10 BXO N18W04
2011/02/13 5 30 CRO N18W18
2011/02/14 7 40 DSO N18W30
2011/02/15 9 40 DSO N19W43
2011/02/16 9 50 DAO N19W57
2011/02/17 2 10 BXO N19W70
B
2

The top 2 solar flares from sunspot region 11157

Start Maximum End
1B6.052011/02/0905:4205:4705:54
2B4.052011/02/0919:5720:0420:11

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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 2026114.3 +28.4
Last 30 days102.4 +48.5

This day in history*

Solar flares
12001X3.14
22002X1.17
32023M2.83
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52000M1.23
DstG
11990-281G4
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*since 1994

Aurora on this day in history

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