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These drop-down menus link to the top auroras of each year. For 2012 through 2018, click on the year to see a calendar linking to all events for that year.

May 12, 2018 Auroras

Grand Rapids, MN

Here are some auroras for the State of Minnesota fishing opener 2018. They were caused by a solar wind high speed stream with Bz hanging out around -3 to -5 nT for about twelve hours previous to this outing. I was out from 10:00 PM CDT until midnight.


As soon as it got dark enough to see them, the auroras were visible on the northern horizon. This shot was taken at 10:35 PM.


The auroras brighten up in a substorm that started around 11:00 PM CDT.


A bit more color comes into the mix.


Some brighter columns ten minutes after the initial substorm.


Here, the columns fill the sky but at a lesser intensity.


My final decent shot at 11:22 PM.

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