Sunspot region AR8716

Number of
sunspots
Size Class Magn. Class Spot Location
1999/10/03 4 160 CSO N21E70
1999/10/04 5 200 CSO N20E60
1999/10/05 6 240 CSO N19E46
1999/10/06 5 230 CSO N20E32
1999/10/07 9 200 CSO N21E17
1999/10/08 2 190 HSX N21E05
1999/10/09 3 200 CSO N22W09
1999/10/10 11 170 CAO N22W20
1999/10/11 7 160 CAO N21W34
1999/10/12 6 180 CKO N23W47
1999/10/13 4 150 CSO N23W62
1999/10/14 2 140 HAX N22W74
1999/10/15 3 100 CSO N22W83
C
3

The top 3 solar flares from sunspot region 8716

Start Maximum End
1C5.21999/10/0218:1118:2818:42
2C4.371999/10/0315:0815:4516:25
3C3.291999/10/0705:1905:2205:27

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Last X-flare2026/02/04X4.21
Last M-flare2026/02/25M2.4
Last geomagnetic storm2026/03/03Kp5 (G1)
Spotless days
Last 365 days3 days
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Last spotless day2026/02/24
Monthly mean Sunspot Number
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Last 30 days56.6 -72.2

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