Sunspot region AR12405

Number of
sunspots
Size Class Magn. Class Spot Location
2015/08/28 1 10 AXX S21E45
2015/08/29 5 10 BXO S23E35
2015/08/30 3 20 CRO S19E21
2015/08/31 3 10 BXO S20E09
2015/09/01 1 0 AXX S21W03
BC
14

The top 5 solar flares from sunspot region 12405

Start Maximum End
1C2.52015/08/2821:2721:3921:44
2C2.022015/08/2914:0114:2014:26
3C1.412015/08/3013:2913:5113:54
4C1.42015/08/2809:4409:4709:49
5B7.452015/08/3114:2714:3814:47

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Last X-flare2024/05/14X8.5
Last M-flare2024/05/14M4.4
Last geomagnetic storm2024/05/13Kp6 (G2)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
April 2024136.5 +31.6
May 2024149.2 +12.7
Last 30 days176.5 +77.5

This day in history*

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12024X8.5
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*since 1994

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