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Sunspot region AR8487

Number of
sunspots		 Size Class Magn. Class Spot Location
1999/03/12 3 20 BXO N17E63
1999/03/13 8 90 CAO N17E51
1999/03/14 16 100 DAO N17E39
1999/03/15 20 190 ESI N16E25
1999/03/16 18 200 EAI N16E11
1999/03/17 22 180 ESI N17W01
1999/03/18 21 180 ESI N17W15
1999/03/19 17 150 CSO N17W25
1999/03/20 2 160 HAX N16W45
1999/03/21 3 100 HSX N17W59
1999/03/22 2 90 CSO N17W72
1999/03/23 2 30 BXO N16W86
CM
124

The top 10 solar flares from sunspot region 8487

Start Maximum End
1M2.831999/03/1320:2220:3420:39
2M1.71999/03/1409:0810:1010:25
3M1.351999/03/1217:2017:2617:32
4M1.071999/03/1413:3813:5014:11
5C8.841999/03/1120:3020:3420:36
6C7.211999/03/1108:2108:2508:27
7C4.611999/03/1220:3320:3820:40
8C3.911999/03/1305:0605:1605:30
9C3.341999/03/1206:4606:5106:53
10C2.961999/03/1111:5411:5711:59
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Last X-flare2024/11/06X2.39
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Last geomagnetic storm2024/11/10Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
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October 2024166.4 +25
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Last 30 days163.2 +18.4

This day in history*

Solar flares
11999X1.15
21999M8.06
32005M5.58
41999M4.11
52005M3.72
DstG
11960-167G3
21998-109G2
32012-108G2
41989-105
51979-90G1
*since 1994

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