Sunspot region AR12580

Number of
sunspots
Size Class Magn. Class Spot Location
2016/08/23 1 20 HSX S16E60
2016/08/24 1 20 HSX S17E46
2016/08/25 1 20 HSX S18E34
2016/08/26 2 40 CSO S18E21
2016/08/27 2 20 HSX S18E09
2016/08/28 1 20 HSX S18W05
2016/08/29 2 20 HRX S18W19
2016/08/30 3 30 HRX S18W30
2016/08/31 8 30 CAO S17W43
2016/09/01 6 60 CAO S16W57
2016/09/02 3 60 CAO S16W71
B
2

The top 2 solar flares from sunspot region 12580

Start Maximum End
1B3.562016/08/2308:4708:5108:57
2B1.432016/08/2209:3509:3809:46

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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
42002M2.34
52000M1.23
DstG
11990-281G4
21982-137G3
31957-124G3
41959-122G4
51960-81G3
*since 1994

Aurora on this day in history

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