Sunspot region AR8571

Number of
sunspots
Size Class Magn. Class Spot Location
1999/06/06 3 30 HRX S19E60
1999/06/07 11 150 CAO S19E48
1999/06/08 10 230 CAO S19E36
1999/06/09 15 210 DAO S19E23
1999/06/10 13 130 DSO S19E09
1999/06/11 8 50 CSO S20W05
1999/06/12 3 40 CSO S19W17
1999/06/13 4 30 CSO S19W31
1999/06/14 4 20 CSO S19W44
1999/06/15 1 0 AXX S20W57
1999/06/16 1 0 AXX S20W71
1999/06/17 1 0 AXX S18W84

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Space weather facts

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 2026128.3 +42.3
Last 30 days97.5 +35.7

This day in history*

Solar flares
12001X1.21
22001M7.3
32001M4.52
42013M3.28
52004M2.47
DstG
11993-165G3
21968-112G3
31978-109G1
41984-108G2
51989-101G2
*since 1994

Aurora on this day in history

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