NGC7635 H-alpha - Dew Control Test


(Click to enlarge)
This image © Copyright 2018, Michael Fulbright

If you image in the Southeast USA then you will have to deal with dew - in my case the primary of my 8 inch f/4 Newtonian would start to dew up about midway through the night! I made some very low heat dew pads to put behind the primary to barely keep it above the dew point. This image was a test to see if this injection of heat would affect image quality. As far as I can tell it isn't. To sharpen the image some more I applied deconvolution as well.

Date: 10/18/2016
Telescope: Teleskop-Service ONTC 8" f4
Mount: Astro-Physics Mach1GTO
Camera: ZWO ASI1600MM-Cool
Exposure: Baader H-alpha 7nm: 80x180" (gain: 139.00) -15C bin 1x1