Your local setup, then the signal-to-noise of the images may be low asĮach image is spread over a large number of pixels. If your pixel scale is much larger than the values quoted above, then the The capabilities of your telescope and CCD and the seeing at your site. That you will have to determine for yourself, taking into consideration In practice, your optimal pixel scale is something Your setup shouldīe such that the pixel scale is no greater than 2"/pixel (preferably) orģ"/pixel (at worst). Size of your CCD's pixels to calculate the pixel scale. You will need to know the focal length of your telescope and the physical
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