Sunspot region AR8506

Number of
sunspots
Size Class Magn. Class Spot Location
1999/04/04 8 10 BXO S26W02
1999/04/05 17 100 DAO S26W15
1999/04/06 23 290 DAO S26W28
1999/04/07 21 260 EAO S26W42
1999/04/08 14 210 EAO S26W55
1999/04/09 5 130 CAO S26W68
1999/04/10 3 130 CAO S28W82
C
5

The top 5 solar flares from sunspot region 8506

Start Maximum End
1C4.831999/04/0523:0123:0923:15
2C4.491999/04/0320:4420:5020:58
3C4.031999/04/0322:1622:2022:23
4C2.311999/04/0320:0020:1720:26
5C2.041999/04/0313:3913:4413:47

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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 2024142.9 -23.5
Last 30 days155.8 +4.5

This day in history*

Solar flares
11998X5.37
21998X3.59
32001X1.41
42001M5.51
51998M2.7
DstG
11991-139G2
21982-114G2
31975-97G2
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*since 1994

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