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Re: PEC Question

 

>>>so only if I decrease my imager scale Will I really need to care about this.?

Don't get focused on the ratios and pixel sizes. The point is your error is in arseconds. Your "wasn't guided out" error on your main PE is 1/4"?

your image scale is 2.2" per pixel. that means that your guiding error is effectively 1/8th of a pixel on your imaging camera.?

Personally I don't think you need to care about this at all until you are imaging at a finer resolution



On Thu, Jul 1, 2021 at 2:35 PM Nick Ambrose <nick.a.ambrose@...> wrote:

Ah I think I see. Because my ratio of guide to image is about 3:1 then any error in the guider will be 1/3 in the imager

so the 15¡± PE is more like 5 and the 0.7 RMS is approx 0.7/3

This makes total sense.?

Even if I got 1.0 at DEC =0 I am still getting 0.3 or 0.4 RMS on the imager which is still less than a pixel

so only if I decrease my imager scale Will I really need to care about this.?



--
Brian?



Brian Valente
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