Sunspot region AR10209

Number of
sunspots
Size Class Magn. Class Spot Location
2002/12/01 8 140 DAO S20E62
2002/12/02 7 170 EAO S21E48
2002/12/03 10 170 ESO S20E35
2002/12/04 6 110 ESO S19E20
2002/12/05 11 120 CSO S19E07
2002/12/06 6 110 CSO S20W07
2002/12/07 1 90 HAX S19W26
2002/12/08 6 50 FAO S20W39
2002/12/09 1 60 HSX S18W52
2002/12/10 1 60 HAX S18W65
2002/12/11 1 50 HSX S17W79
2002/12/12 1 60 HSX S17W90
C
3

The top 3 solar flares from sunspot region 10209

Start Maximum End
1C2.492002/12/0103:5203:5804:02
2C1.642002/11/3022:0822:1222:16
3C1.152002/11/3011:1911:2511:32

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Space weather facts

Last X-flare2026/03/30X1.5
Last M-flare2026/04/09M1.0
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 2026107.7 +21.8
Last 30 days100 +44.8

This day in history*

Solar flares
12013M9.34
22024M5.47
32001M3.41
42000M1.63
52000M1.5
DstG
12001-271G4
21990-190G3
31978-114G4
41982-110G2
51959-88G1
*since 1994

Aurora on this day in history

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