Viewing archive of Friday, 20 October 2017

Sunspot numberNew regionsBackground fluxM
00A6.61

Solar flares

Region Start Maximum End
- B1.4 00:06 00:49 01:01
- B3.4 13:52 14:03 14:09
- B3.9 22:45 22:53 22:58
2685 M1.0 23:10 23:28 23:36

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Current data suggest that it is not possible to see aurora now at middle latitudes

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Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2018/06/18Kp5 (G1)
Number of spotless days in 2018:85
Last spotless day:2018/06/11

This day in history*

Solar flares
12013C8.4
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32002C5.5
41999C5.1
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ApG
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3200314
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*since 1994

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