Sunspot region AR8171

Number of
sunspots
Size Class Magn. Class Spot Location
1998/02/28 3 10 BXO S24E05
1998/03/01 8 30 DRO S24W10
1998/03/02 14 110 DSO S23W23
1998/03/03 30 190 DSI S23W36
1998/03/04 24 300 EAI S23W50
1998/03/05 19 540 EKI S24W62
1998/03/06 16 660 EKI S24W75
1998/03/07 5 340 DHO S24W86
BC
1120

The top 10 solar flares from sunspot region 8171

Start Maximum End
1C6.411998/03/0509:0509:1209:15
2C3.71998/03/0500:1400:2000:38
3C3.71998/03/0601:2301:2801:33
4C3.631998/03/0407:1107:1907:33
5C3.51998/03/0421:2421:3921:48
6C3.31998/03/0515:0215:0815:16
7C2.831998/03/0419:1019:1619:25
8C2.671998/03/0513:1213:2013:32
9C2.61998/03/0405:5306:0506:16
10C2.091998/03/0417:3217:3617:40

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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 2026118.8 +32.8
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

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