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Sunspot region AR12158

Number of
sunspots		 Size Class Magn. Class Spot Location
2014/09/05 2 100 HAX N16E83
2014/09/06 4 300 CKO N15E68
2014/09/07 7 310 DKC N15E54
2014/09/08 10 380 DKC N16E40
2014/09/09 10 380 DKC N15E28
2014/09/10 25 420 DKC N15E14
2014/09/11 22 400 DKC N15W00
2014/09/12 23 440 DKC N16W12
2014/09/13 20 400 DKC N16W26
2014/09/14 29 180 CAI N16W39
2014/09/15 13 200 DAI N16W53
2014/09/16 71 170 DSI N16W66
2014/09/17 2 110 CAO N16W81
2014/09/18 2 90 CAO N15W93
2014/09/19 2 90 CAO N15W0*
CMX
1121

The top 10 solar flares from sunspot region 12158

Start Maximum End
1X2.392014/09/1017:2117:4518:20
2M6.562014/09/0923:1200:2901:31
3M1.092014/09/1719:2619:4820:13
4C4.592014/09/1208:2409:5510:43
5C4.232014/09/1502:0402:2402:46
6C3.162014/09/1518:1118:1518:17
7C3.042014/09/0819:0119:0719:36
8C2.992014/09/1619:0619:2719:34
9C2.922014/09/1620:3720:4320:47
10C2.182014/09/1323:1623:1923:23
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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 2026121 +35.1
Last 30 days102.1 +47

This day in history*

Solar flares
12001X1.14
22000M4.54
32003M3.68
42002M3.12
52002M1.68
DstG
11984-100G3
21971-97G2
32006-82G2
41959-73G2
51995-68G1
*since 1994

Aurora on this day in history

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