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Thursday, December 15, 2016

We're up and running!!

"Most" of the calibrations are completed. The imaging train is robust and reliable. CCD Inspector shows that collimation is required, but almost no tilt exists in the imaging train. The Edge optics are providing a nice flat field. Seeing has not been very good and trying to lower FWHM has proven to be a challenge. I believe after collimation the numbers will improve. However, that will have to wait as the dome gets very cold at night this time of year. 

I have been imaging Caldwell C30 for a couple of nights. The darks, bias, and flats have been integrated in PixInsight. Stay tuned for a first image along with a description of the target.

I’m having some trouble with getting LUM flats that aren’t distorted. I’m using a light box and the RGB flats are acceptable. The QSI CCD requires flats that are approximately 35700 ADU’s. I’ll need to get this worked out before I can move forward with the processing.

Sorry for all the technical jargon, but every once in a while I’ll throw in a post like this to interest the astrophotographers reading the blog. Believe it or not, there are quite a few of them lurking out there. Your comments are always welcomed!            George

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