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Sunspot region AR13166

Number of
sunspots		 Size Class Magn. Class Spot Location
2022/12/11 4 20 CRO S07E45
2022/12/12 3 10 BXO S07E30
2022/12/13 1 10 AXX S09E16
2022/12/14 6 30 CRO S07W00
2022/12/15 15 80 DAO S08W11
2022/12/17 9 170 DSO S08W39
2022/12/18 10 130 DSO S07W52
2022/12/19 4 180 DSO S07W67
2022/12/20 4 120 DAO S08W81
C
3

The top 3 solar flares from sunspot region 13166

Start Maximum End
1C3.12022/12/1214:5615:0915:28
2C3.02022/12/1708:4708:5408:58
3C1.82022/12/1118:3318:4319:00
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Last X-flare2026/03/30X1.5
Last M-flare2026/04/04M1.0
Last geomagnetic storm2026/04/03Kp7- (G3)
Spotless days
Last 365 days3 days
20263 days (3%)
Last spotless day2026/02/24
Monthly mean Sunspot Number
March 202685.9 +7.7
April 2026121 +35.1
Last 30 days102.1 +47

This day in history*

Solar flares
12001X1.14
22000M4.54
32003M3.68
42002M3.12
52002M1.68
DstG
11984-100G3
21971-97G2
32006-82G2
41959-73G2
51995-68G1
*since 1994

Aurora on this day in history

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