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Coronal hole faces Earth

Saturday, 21 October 2017 - 08:57 UTC

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

Saturday, 21 October 2017 - 08:36 UTC

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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Small coronal hole faces Earth

Wednesday, 18 October 2017 - 14:15 UTC

Small coronal hole faces Earth

A small coronal hole faced Earth yesterday.

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Double far side eruption

Wednesday, 18 October 2017 - 13:21 UTC

Double far side eruption

Two non earth-directed coronal mass ejections are now visible in the latest SOHO/LASCO coronagraph imagery.

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Coronal hole faces Earth

Tuesday, 10 October 2017 - 15:46 UTC

Coronal hole faces Earth

A northern hemisphere coronal hole is facing our planet today.

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Coronal holes faces Earth, AR2673 returns

Sunday, 24 September 2017 - 14:09 UTC

Coronal holes faces Earth, AR2673 returns

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

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Sunspot region 2673 YouTube video

Thursday, 14 September 2017 - 22:11 UTC

Sunspot region 2673 YouTube video

Solar activity has plunged to very low levels with the disappearance of sunspot region 2673.

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Coronal mass ejection arrival

Tuesday, 12 September 2017 - 19:54 UTC

Coronal mass ejection arrival

The X8.2 coronal mass ejection has arrived. A weak impact was observed at 19:29 UTC with a minor increase in the solar speed, density and the total strength of the interplanetary field (Bt). This is without a doubt the glancing blow arrival of the X8.2 coronal mass ejection as the low energy protons measured by ACE/EPAM peaked at the moment of impact, a classic sign of a CME arrival.

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Coronal hole faces Earth

Monday, 11 September 2017 - 23:01 UTC

Coronal hole faces Earth

A southern extension of the northern hemisphere polar coronal hole is facing our planet today. It is the same coronal hole that caused minor G1 geomagnetic storm conditions for four days last month.

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X8.2 coronal mass ejection

Monday, 11 September 2017 - 16:42 UTC

X8.2 coronal mass ejection

Yesterday's X8.2 (R3-strong) solar flare from sunspot region 2673 was one of the most spectacular solar flares we have ever seen. Not only was this the second strongest solar flare of the current solar cycle, it also launched an extremely fast and broad coronal mass ejection. What a way to say goodbye! Let's hope it survives its 2 week journey on the far side of the Sun!

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

Latest news

Today's space weather

Auroral activity Minor Severe
High latitude 30% 25%
Middle latitude 5% 1%
Predicted Kp max 4
Solar activity
M-class solar flare 20%
X-class solar flare 1%
B2.2
Moon phase
Waxing Crescent

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Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2017/10/15Kp5 (G1)
Number of spotless days in 2017:68
Last spotless day:2017/10/20

This day in history*

Solar flares
12014X1.6
22001X1.2
32003M9.9
42014M8.7
52001M6.7
ApG
1200196G3
2199991G4
3199638G3
4200334G1
5199425G2
*since 1994