useful links


http://www.astropix.com/html/i_astrop/tripod/toc_tri.html

"For fixed tripod pics try Sequator.  It does actually correct for lens distortions."
From Cloudy nights.
https://www.cloudynights.com/topic/621840-why-are-my-astrophotos-so-grainy/page-2?hl=%2Buntracked#entry8646446

https://sites.google.com/site/sequatorglobal/


backyard astro, including sky window
http://www.backyard-astro.com

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