Sunspot region AR12640

Number of
sunspots
Size Class Magn. Class Spot Location
2017/02/27 2 10 BXO N11E24
2017/02/28 4 20 BXO N09E11
2017/03/01 2 30 AXX N08W04
2017/03/02 2 10 AXX N09W18
2017/03/03 1 10 AXX N08W33
B
2

The top 2 solar flares from sunspot region 12640

Start Maximum End
1B4.012017/02/2623:1123:1823:25
2B1.62017/02/2704:5705:0005:04

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Space weather facts

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 days156.1 +4.7

This day in history*

Solar flares
11998X5.37
21998X3.59
32001X1.41
42001M5.51
51998M2.7
DstG
11991-139G2
21982-114G2
31975-97G2
42003-87G2
51960-76G2
*since 1994

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