Sunspot region AR9815

Number of
sunspots
Size Class Magn. Class Spot Location
2002/02/04 1 80 HSX N12E70
2002/02/05 2 80 HAX N10E57
2002/02/06 3 70 CAO N12E43
2002/02/07 7 100 CAO N12E30
2002/02/08 10 80 CAO N12E17
2002/02/09 13 60 DAO N11E02
2002/02/10 9 20 BXO N11W09
2002/02/11 5 40 BXO N11W24
C
1

The top 1 solar flares from sunspot region 9815

Start Maximum End
1C7.672002/02/0620:1020:1420:17

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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 202692 +6.1
Last 30 days93.7 +33.5

This day in history*

Solar flares
12001X20.6
22000M6.14
32002M5.32
42024M4.02
52000M3.24
DstG
11971-143G3
21961-118G4
31989-95G1
41990-80G1
51973-71
*since 1994

Aurora on this day in history

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