I had several nearly perfect nights with highest resolution that I have seen here at my Northern Illinois observatory. We had a stationary high pressure that kept the jet stream away and allowed my 10" F14.6 Mak-Cass to perform at peak resolution. I had FWHM of 0.79 arc sec during 3 second exposure focusing runs and 10 minute exposures with 1.12 arc sec FWHM star sizes.
I was able to get enough Luminance, Narrowband and RGB images to put together a colorful ring. Camera is QSI 683 WSG, scope is AP 10" F14.6 Mak-Cass, mount is AP 1100. Exposures varied from 60 seconds to 600 seconds.
Rolando
I was able to get enough Luminance, Narrowband and RGB images to put together a colorful ring. Camera is QSI 683 WSG, scope is AP 10" F14.6 Mak-Cass, mount is AP 1100. Exposures varied from 60 seconds to 600 seconds.
Rolando
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