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Sunspot region AR12420

Number of
sunspots		 Size Class Magn. Class Spot Location
2015/09/21 12 270 EKC N09E71
2015/09/22 16 290 EKC N10E64
2015/09/23 13 280 EKC N10E50
2015/09/24 13 280 EKC N10E50
2015/09/25 19 200 EAI N09E22
2015/09/26 17 150 FAI N10E09
2015/09/27 15 140 FAI N10W04
2015/09/28 11 110 FAI N11W17
2015/09/29 9 100 ESO N11W31
2015/09/30 12 50 CSO N11W44
2015/10/01 2 40 CSO N12W57
2015/10/02 3 20 CRO N10W70
2015/10/03 3 10 BXO N11W84
2015/10/04 1 30 HAX N14W91
2015/10/05 1 30 HAX N14W0*
BCM
462

The top 10 solar flares from sunspot region 12420

Start Maximum End
1M2.22015/09/2004:5505:0305:17
2M1.272015/09/2105:1105:1805:22
3C6.072015/09/2101:5702:0402:08
4C4.022015/09/2100:1000:2100:29
5C3.972015/10/0318:0418:0918:15
6C2.112015/09/2103:5404:0004:05
7C1.572015/10/0316:2316:4416:52
8C1.272015/09/2013:4913:5413:58
9B8.622015/09/2103:2903:3303:37
10B7.022015/09/2118:5218:5318:54
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Last X-flare2024/11/06X2.39
Last M-flare2024/11/20M1.1
Last geomagnetic storm2024/11/10Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
October 2024166.4 +25
November 2024142.7 -23.8
Last 30 days155.2 +4.4

This day in history*

Solar flares
12012M5.08
21999M4.93
31999M3.27
42000M2.33
52012M2.11
DstG
12003-309G3
21991-135G3
32002-128G3
41960-111G2
51970-110G2
*since 1994

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