Sunspot region AR11156

Number of
sunspots
Size Class Magn. Class Spot Location
2011/02/09 6 10 CRO S19E43
2011/02/10 11 20 CRO S14E23
2011/02/11 11 20 DRO S14E09
2011/02/12 5 40 CRO S21W06
2011/02/13 2 10 BXO S21W22
2011/02/14 3 0 AXX S21W35
B
2

The top 2 solar flares from sunspot region 11156

Start Maximum End
1B9.442011/02/1014:3814:4214:47
2B7.472011/02/1020:4920:5320:57

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Last X-flare2024/11/06X2.39
Last M-flare2024/11/13M1.0
Last geomagnetic storm2024/11/10Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
October 2024166.4 +25
November 2024175.7 +9.3
Last 30 days166.1 +21.7

This day in history*

Solar flares
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22012M4.14
32005M3.59
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52003M2.36
DstG
11960-339G5
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*since 1994

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