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Sunspot region AR13641

Number of
sunspots		 Size Class Magn. Class Spot Location
2024/04/14 8 70 DAO N16E19
2024/04/15 19 90 DAO N11W01
2024/04/16 6 110 DAO N11W15
2024/04/17 3 60 DAO N12W28
2024/04/18 1 30 HSX N12W42
2024/04/19 1 10 AXX N09W59
2024/04/20 1 20 HRX N16W59
2024/04/21 1 10 AXX N09W78
2024/04/22 1 10 AXX N10W0*
C
1

The top 1 solar flares from sunspot region 13641

Start Maximum End
1C2.82024/04/1700:1000:1700:23
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Latest forum messages

AR4420 28Incoming & Unnumbered Active Regions 281New satellites - Proba-3, PUNCH, SWFO-L1, GOES-U/19 77Coronal Holes 42/44 98Current Farside Activity 460
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Space weather facts

Last X-flare2026/03/30X1.5
Last M-flare2026/04/09M1.0
Last geomagnetic storm2026/04/20Kp5 (G1)
Spotless days
Last 365 days3 days
20263 days (3%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
March 202685.9 +7.7
April 202678.7 -7.2
Last 30 days91.4 +21.7

This day in history*

Solar flares
12001M4.66
22022M3.4
32024M2.81
42011M2.64
52004M1.78
DstG
11970-137G3
21988-109G1
32001-102G2
41979-99G2
51997-93G1
*since 1994

Aurora on this day in history

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