AR2665 returns, Coronal hole faces Earth

Tuesday, 1 August 2017 11:51 UTC

AR2665 returns, Coronal hole faces Earth

Old sunspot region 2665 which caused a couple of large far side eruptions is now rotating back onto the earth-facing solar disk.

A couple of smaller sunspots are visible right now and solar activity has picked up with B and C-class activity. How will the region look like when it has fully rotated into view and is it still capable of producing major solar flares? We will soon find out!

Sunspot region 2665 returns. How many more spots are still hiding behind the limb? Image by NASA SDO.

Coronal hole faces Earth

A southern extension of the northern hemisphere polar coronal hole is facing Earth today. An enhanced solar wind stream from this coronal hole could arrive in about 3 days from now and cause enhanced geomagnetic conditions this next Friday, 4 August.

Any mentioned solar flare in this article has a scaling factor applied by the Space Weather Prediction Center (SWPC), the reported solar flares are 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.

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