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Sunspot region AR12546

Number of
sunspots		 Size Class Magn. Class Spot Location
2016/05/15 1 250 HHX S07E71
2016/05/16 3 410 HHX S07E57
2016/05/17 2 540 HHX S07E43
2016/05/18 5 540 CHO S07E33
2016/05/19 2 480 CHO S07E19
2016/05/20 4 440 CHO S07E07
2016/05/21 9 520 CHO S07W07
2016/05/22 7 550 CHO S07W21
2016/05/23 5 480 CHO S07W35
2016/05/24 3 460 HHX S07W49
2016/05/25 1 450 HHX S07W63
2016/05/26 1 330 HHX S07W75
2016/05/27 1 300 HHX S07W88
2016/05/28 1 300 HHX S07W0*
BC
155

The top 10 solar flares from sunspot region 12546

Start Maximum End
1C1.762016/05/2410:1610:2010:23
2C1.372016/05/2613:4513:5113:57
3C1.362016/05/2113:5514:0014:07
4C1.282016/05/2408:3108:3608:40
5C1.262016/05/2420:4921:0721:10
6B9.392016/05/2110:5611:0011:03
7B8.432016/05/2209:1209:2109:28
8B7.472016/05/2108:4308:4608:50
9B6.582016/05/2408:1908:2408:28
10B6.292016/05/2012:1912:2312:28
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Space weather facts

Last X-flare2026/03/30X1.5
Last M-flare2026/04/04M1.0
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 2026122.8 +36.9
Last 30 days99.9 +42.1

This day in history*

Solar flares
12006M1.39
22002M1.38
31997C9.01
42002C8.7
52002C6.29
DstG
12000-292G4
21995-149G4
31977-95G3
41989-85G1
51960-76G1
*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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