Sunspot region AR8770

Number of
sunspots
Size Class Magn. Class Spot Location
1999/11/17 5 40 DSO S14W23
1999/11/18 8 50 DSO S14W37
1999/11/19 9 110 DAO S13W51
1999/11/20 8 90 DSO S14W65
1999/11/21 7 60 CSO S13W80
C
1

The top 1 solar flares from sunspot region 8770

Start Maximum End
1C5.131999/11/1818:4618:5218:57

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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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