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Sunspot region AR13997

Number of
sunspots		 Size Class Magn. Class Spot Location
2025/02/15 5 30 CAO N03E42
2025/02/16 56 40 CAI N03E27
2025/02/17 10 50 CAI N03E13
2025/02/18 8 30 CAO N03E01
2025/02/19 3 10 BXO N03W12
2025/02/20 3 10 BXO N03W25
2025/02/21 2 10 BXO N03W40
2025/02/22 2 10 BXO N03W55
C
5

The top 5 solar flares from sunspot region 13997

Start Maximum End
1C5.72025/02/1714:4614:5515:07
2C4.22025/02/1910:4110:4910:58
3C2.32025/02/1500:2200:3100:34
4C2.02025/02/1620:2520:2920:35
5C1.72025/02/1422:2722:3522:52
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Last X-flare2025/12/08X1.1
Last M-flare2025/12/12M1.1
Last geomagnetic storm2025/12/12Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
November 202591.8 -22.8
December 2025131.8 +40
Last 30 days108.3 +14.5

This day in history*

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*since 1994

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