Region 11172

Number of
sunspots
Size Class Magn. Class Spot Location
2011/03/12 2 10 BXO N11E72
2011/03/13 2 20 BXO N12E58
2011/03/14 3 20 BXO N12E44
2011/03/15 4 10 BXO N14E30
2011/03/16 2 10 BXO N10E17
2011/03/17 1 0 AXX N11E02
BC
52

The top 7 solar flares from sunspot region 11172

Start Maximum End
1C1.62011/03/1216:2616:3716:45
2C1.42011/03/1408:0708:1508:25
3B9.92011/03/1407:0507:1107:18
4B6.92011/03/1508:0708:1108:14
5B3.42011/03/1920:1320:1620:19
6B2.92011/03/1921:3921:4421:47
7B2.72011/03/1916:2116:3416:52

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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 2019:215
Current stretch spotless days:17

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