Sunspot region AR8420

Number of
sunspots
Size Class Magn. Class Spot Location
1998/12/24 1 10 AXX N18E64
1998/12/25 2 10 AXX N18E52
1998/12/26 1 0 AXX N17E40
1998/12/27 3 10 BXO N20E24
1998/12/28 3 10 BXO N20E12
1998/12/29 3 10 BXO N18W01
1998/12/31 2 10 HRX N19W17
1999/01/01 2 0 AXX N20W30
1999/01/02 5 30 BXO N20W42
1999/01/03 1 0 AXX N20W55
CM
11

The top 2 solar flares from sunspot region 8420

Start Maximum End
1M1.261999/01/0308:0708:5409:58
2C1.471999/01/0305:2305:2605:28

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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*

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12012M5.08
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DstG
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*since 1994

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