Coronal hole faces Earth

Saturday, 31 October 2015 - 13:40 UTC

Coronal hole faces Earth

A trans equatorial coronal hole is now facing Earth. This is the same coronal hole that was responsible for a strong G3 geomagnetic storm on 7 October 2015.

Compared to the last rotation, this coronal hole has shrunk a bit in size while it transited the far side of the Sun. We nonetheless expect geomagnetic storming up to the moderate G2 (Kp6) level considering solar wind speeds up to 800km/s are expected once the solar wind stream arrives. We should start to see the effects here at Earth from this coronal hole around the third or fourth of November.

Image: A coronal hole faces Earth right now as can be seen on this image from SDO.

Thank you for reading this article! Did you had trouble with some of 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


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!


Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2020/02/19Kp5 (G1)
Number of spotless days in 2020:76
Current stretch spotless days:5

This day in history*

Solar flares
*since 1994

Social networks