Top 50 solar flares of the year 2005

On this page you will find an overview of the strongest solar flares of the year 2005 together with links to more information in our archive and a video (if available) of the event.

RegionStartMaximumEnd
1X24.42+2005/09/07080817:1717:4018:03
2X10.182005/01/20072006:3607:0107:26
3X8.872005/09/09080819:1320:0420:36
4X7.772005/09/08080820:5221:0621:17
5X5.522005/01/17072006:5909:5210:07
6X5.172005/09/09080809:4209:5910:08
7X3.792005/01/15072022:2523:0223:31
8X3.022005/09/10080821:3022:1122:43
9X2.542005/09/13080823:1523:2223:30
10X2.492005/01/01071500:0100:3100:39
11X2.152005/09/13080819:1919:2720:57
12X22005/01/19072008:0308:2208:40
13X1.882005/07/30079206:1706:3507:01
14X1.862005/07/14078610:1610:5511:29
15X1.792005/01/15072000:2200:4301:02
16X1.682005/09/15080808:3008:3808:46
17X1.672005/09/10080816:3416:4316:51
18X1.672005/09/09080802:4303:0003:07
19X1.42005/09/17080805:5806:0506:15
20X1.32005/07/14078605:5707:2507:43
21X1.242005/01/15072005:5406:3807:17
22X1.212005/01/15072004:2604:3104:36
23X1.152005/05/13075916:1316:5717:28
24X1.132005/12/02082610:0510:1210:25
25M9.72005/01/19072006:5807:3107:55
26M9.392005/12/02082602:4202:5203:00
27M9.162005/08/25080304:3104:4004:45
28M8.972005/09/09080805:3205:4806:00
29M8.782005/09/12080808:3709:0309:20
30M8.122005/08/22079816:4617:2718:02
31M7.272005/07/13078614:0114:4915:38
32M7.022005/07/07078616:0716:2916:40
33M6.962005/07/28079221:3922:0822:24
34M6.672005/09/1410:0510:3810:54
35M6.582005/01/18072015:3815:5115:59
36M6.382005/09/16080801:4101:4901:56
37M6.072005/08/02079418:2218:3118:37
38M5.982005/09/10080819:1019:3619:50
39M5.722005/06/16077520:0120:2220:42
40M5.582005/11/14082214:1614:2114:23
41M5.42005/09/10080806:0606:1406:17
42M5.372005/07/2704:3305:0205:30
43M5.082005/09/16080819:1819:3619:48
44M5.052005/05/15076322:2722:3622:42
45M4.942005/08/03079404:5405:0605:11
46M4.862005/09/11080802:2902:3502:40
47M4.722005/02/19073210:3611:0111:13
48M4.642005/01/15071814:0814:2314:39
49M4.592005/07/13078612:0312:1912:24
50M4.42005/09/11080812:4413:1213:53
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Last X-flare2025/06/19X1.9
Last M-flare2025/09/06M1.2
Last geomagnetic storm2025/09/16Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
August 2025133.5 +7.9
September 2025109.9 -23.6
Last 30 days122.5 -4.9

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