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Daniel. Welcome,,,, Looks like you must be a bit more precise with your wording. On this forum images refer to camera images and you will incur the wrath of Mr Bambury. He has a definite hatered for imaging of any kind. (Before you sink both feet again John. You were the BIG voice against the IIS Compendium for Astro imagers and had quite a bit to say about the quality of the images shown in this lovely book. Not bad from one who doesn't image.) To be politically correct you had better refer to it as Visual observations.
Again welcome Daniel, but I would have thought the temprature rise accross on open scope with the body close would have only been a microscopic amount and wouldn't have caused aberations as high as the quality of even the best mirrors. It does open up a lot of concerns for me as an imager trying to image through many layers of atmosphere all with differing thermal values.
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