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Coronal hole faces Earth

A large southern extension of the northern hemisphere polar coronal hole is facing Earth today.

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M1.1 solar flare from behind the east limb

A huge surprise last evening as solar activity unexpectedly reached moderate level thanks to an M1.11 (R1-minor) solar flare that took place behind the east limb. The solar flare peaked at 23:28 UTC on 20 October 2017.

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Space weather facts

Last X-flare2017/09/10X8.2
Last M-flare2020/05/29M1.1
Last geomagnetic storm2020/04/20Kp5 (G1)
Spotless days
Last 365 days319 days
2020124 days (81%)
Last spotless day2020/05/31

This day in history*

Solar flares
12000M7.6
22003M6.5
32000M4.1
42003M3.9
52007M2.5
ApG
1200338G1
2199424
3200122G1
4199518
5201317
*since 1994

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