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.

An enhanced solar wind stream flowing from this coronal hole could arrive in about 3 days from now and minor G1 geomagnetic storm conditions are likely on Wednesday, 27 September.

Sunspot region 2673 returns

Bad news! Old sunspot region 2673 has returned on the Earth-facing solar disk. It decayed heavily on the far side and it is now a simple Alpha sunspot region with only one sunspot surrounded by large ammounts of faculae. This sunspot region is unlikely to produce strong solar flares. It will likely recieve sunspot number 2681 later today or tomorrow.

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.

Thank you for reading this article! Did you have any trouble with the technical terms used in this article? Our help section is the place to be where you can find in-depth articles, a FAQ and a list with common abbreviations. Still puzzled? Just post on our forum where we will help you the best we can! Never want to miss out on a space weather event or one of our news articles again? Subscribe to our mailing list, follow us on Twitter and Facebook and download the SpaceWeatherLive app for Android and iOS!

Latest news

Support SpaceWeatherLive.com!

A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!

100%
Support SpaceWeatherLive with our merchandise
Check out our merchandise

Latest alerts

Get instant alerts!

Space weather facts

Last X-flare2024/11/06X2.39
Last M-flare2024/11/20M1.1
Last geomagnetic storm2024/11/10Kp5+ (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
October 2024166.4 +25
November 2024142.7 -23.8
Last 30 days156.1 +4.7

This day in history*

Solar flares
11998X5.37
21998X3.59
32001X1.41
42001M5.51
51998M2.7
DstG
11991-139G2
21982-114G2
31975-97G2
42003-87G2
51960-76G2
*since 1994

Social networks