Region 12172

Number of
sunspots
Size Class Magn. Class Spot Location
2014/09/21 1 30 HRX S09E75
2014/09/22 10 320 EKC S11E63
2014/09/23 11 430 EKC S11E50
2014/09/24 17 570 EKC S11E36
2014/09/25 16 440 EKC S10E24
2014/09/26 29 450 EKC S11E09
2014/09/27 55 500 EKC S11W05
2014/09/28 55 500 EKC S11W05
2014/09/29 56 490 FKC S12W31
2014/09/30 28 510 FHC S12W43
2014/10/01 14 320 FKC S10W57
2014/10/02 13 200 FAO S09W69
2014/10/03 4 150 ESO S08W82
2014/10/04 1 10 AXX S08W91
2014/10/05 1 10 AXX S08W0*
CM
182

The top 10 solar flares from sunspot region 12172

Start Maximum End
1M2.32014/09/2323:0323:1623:28
2M1.52014/10/0217:1017:4418:15
3C7.02014/09/2417:4517:5017:52
4C6.72014/10/0102:4003:0603:48
5C5.72014/10/0303:5804:2004:37
6C4.22014/09/2613:5013:5413:56
7C3.42014/09/2801:0901:1601:28
8C3.22014/10/0300:0500:0800:12
9C2.92014/09/2810:5510:5911:02
10C2.72014/09/2719:1919:5120:01

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Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2020/02/19Kp5 (G1)
Number of spotless days in 2020:72
Last spotless day:2020/03/30

This day in history*

Solar flares
12001M5.5
22017M4.4
32001M4.0
42001M1.2
52001M1.0
ApG
1200138G2
2200729G1
3200318G1
4200218
5201715
*since 1994

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