Sunspot region AR12842

Number of
sunspots
Size Class Magn. Class Spot Location
2021/07/10 1 60 HSX N24E79
2021/07/11 1 60 HSX N24E66
2021/07/12 1 60 HSX N25E51
2021/07/13 1 50 HSX N24E38
2021/07/14 1 60 HSX N25E25
2021/07/15 1 30 HSX N24E12
2021/07/16 1 20 HSX N25W00
2021/07/17 5 40 CSO N26W15
2021/07/18 5 40 DSO N25W28
2021/07/19 10 90 DSI N27W42
2021/07/20 10 140 DAI N24W55
2021/07/21 7 80 DSI N26W67
2021/07/22 4 80 CSO N25W80
2021/07/23 0 0 AXX N29W89
2021/07/24 0 0 AXX N29W0*
B
10

The top 10 solar flares from sunspot region 12842

Start Maximum End
1B9.42021/07/2113:3913:4813:55
2B8.72021/07/2111:5011:5812:06
3B7.82021/07/1703:0103:1703:30
4B4.02021/07/1913:3913:4613:52
5B2.12021/07/1120:3720:4720:56
6B1.32021/07/1716:3916:4917:01
7B1.22021/07/1215:2915:3815:43
8B1.22021/07/1705:4705:5506:03
9B1.22021/07/1718:4018:5119:01
10B1.12021/07/1708:0108:0908:16

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Last X-flare2024/12/08X2.2
Last M-flare2024/12/23M8.9
Last geomagnetic storm2024/12/17Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
November 2024152.5 -13.9
December 2024106.6 -45.9
Last 30 days114.4 -44.3

This day in history*

Solar flares
12024M8.9
22015M6.75
31998M3.34
42013M2.36
52013M1.97
DstG
12002-67
22000-62G2
31989-60
42014-57
51982-53G1
*since 1994

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