johnnyhenderson 6 år, 10 måneder siden.
I’ve been using an AVX for about a year now and I rarely have guiding better than ~1.5 rms in my back yard (example below). On occasion, I’ve been able to get sub-arc second guiding, but only with exceptional seeing which is very rare in the northeast. Thus, I’ve attributed my typical guiding mostly to poor seeing conditions. I usually image with my AT65EDQ, and T5i where my image scale is ~2 arc sec/px, so I can still get reasonably tight stars with cruddy guiding.
I was very surprised to see such different settings used (from myself) in PhD and I’m going to try and tweak things. 1) I’ve not tried fiddling with guide rate on the mount – i’ve always used 1x sidereal and I’m very curious to see if this will make a difference on the AVX. 2) I’m wondering whether shorter guide exposures and therefore more frequent guide corrections will help or hinder with my setup. My typical settings are 2-3s exposures and min motion threshold.
Thanks
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