Sunspot region AR12393

Number of
sunspots
Size Class Magn. Class Spot Location
2015/07/31 8 10 DAO N16E45
2015/08/01 6 90 DAO N17E34
2015/08/02 7 50 CAO N17E22
2015/08/03 5 30 CRO N18E08
2015/08/04 2 20 HAX N18W06
2015/08/05 1 20 HSX N18W20
2015/08/06 1 20 HSX N18W33
2015/08/07 1 20 HAX N18W46
2015/08/08 1 10 HRX N19W60
2015/08/09 1 10 HRX N19W72
2015/08/10 1 0 AXX N19W84
2015/08/11 1 0 AXX N19W98
BC
11

The top 2 solar flares from sunspot region 12393

Start Maximum End
1C1.122015/08/0101:1401:3101:37
2B7.882015/07/3023:2823:4623:53

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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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