Region 8487

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
BCM
1132

The top 10 solar flares from sunspot region 8487

Start Maximum End
1M1.91999/03/1320:2220:3420:39
2M1.11999/03/1409:0810:1010:25
3C9.41999/03/1217:2017:2617:32
4C7.51999/03/1413:3813:5014:11
5C6.11999/03/1120:3020:3420:36
6C5.01999/03/1108:2108:2508:27
7C3.21999/03/1220:3320:3820:40
8C2.71999/03/1305:0605:1605:30
9C2.31999/03/1206:4606:5106:53
10C2.01999/03/1111:5411:5711:59

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Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/09/28Kp5 (G1)
Number of spotless days in 2019:210
Current stretch spotless days:12

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*since 1994

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