Sunspot region AR12573

Number of
sunspots
Size Class Magn. Class Spot Location
2016/08/08 2 60 DSO N04E71
2016/08/09 5 90 CSO N04E62
2016/08/10 5 90 CSO N04E47
2016/08/11 5 90 CSO N04E32
2016/08/12 5 90 CSO N04E17
2016/08/13 5 90 CSO N04E02
2016/08/14 5 90 CSO N04W13
2016/08/15 5 90 CSO N04W28
2016/08/16 5 90 CSO N04W43
2016/08/17 5 90 CSO N04W58
2016/08/18 5 90 CSO N04W73
2016/08/19 5 90 CSO N04W88
2016/08/20 5 90 CSO N04W0*

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Space weather facts

Last X-flare2026/03/30X1.5
Last M-flare2026/04/03M1.3
Last geomagnetic storm2026/04/02Kp6- (G2)
Spotless days
Last 365 days3 days
20263 days (3%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
March 202685.9 +7.7
April 2026141 +55.1
Last 30 days95.4 +31.2

This day in history*

Solar flares
12002M8.82
21999M6.76
32001M2.91
42003M2.74
52001M2.31
DstG
11979-202G3
21988-133G3
31984-120G4
42004-117G2
51994-111G3
*since 1994

Aurora on this day in history

No observations submitted for this day in history. If you've observed the aurora and you have some amazing photos to show off, submit your observations now!
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