FreeLists / az-observing / [AZ-Observing] Re: Major Airglow Enhancement in North

[Tom Polakis <tpolakis@xxxxxxx>]

---- Chris Schur <comets133@xxxxxxxxx> wrote: 

> really wanted to share it with all of you.  Please
> comment if you seen this spectacle in the north
> before!
> 
> http://www.schursastrophotography.com/xtiastro/fisheye090907airglow.html


Yes, Chris, I saw this same green sky illumination in the north on a night in 
1991 just prior to Pinatubo mucking up the  Northern Hemisphere's sky for more 
than a year.  We were at the "Camp 613" site on the Rim, and I noticed faint 
horizontal strata in the north.

They photographed on Ektachrome 400 as lime green, but the scan is pretty ugly, 
and I don't feel like digging for the slide right now.  This was a file that 
was lost from the file server at psiaz.com, but turns up on the Wayback Machine 
Internet archive.  Again, pardon the quality, but you get the idea.

http://web.archive.org/web/20000915124432/www.psiaz.com/polakis/nightastro/aurora613.jpg

I am wondering if the phenomenon we imaged might be acoustic gravity waves, 
shown on this site by Gordon Garradd in Australia.

http://members.ozemail.com.au/~loomberah/agw1.htm

Tom
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