Quote:
Originally Posted by mental4astro
360X and up. You don't need 600X, but maybe with some scopes that's what it takes.
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At 360X in a 7-8" scope you have absolutely no chance of seeing it. It is hard enough in 16" at 500 times. Contrast would be impossibly low to detect it.
Our senses (including eyes) are too easy to be fooled, it is simply a fact of life. Believing has nothing to do with it. I have an audiophile friend who is absolutely positive that he can hear differences after replacing mains lead for his
laptop (not kidding). He would bet his house on it.
Listen, I know about what people like Thomas Back could see in the telescope.
He was convinced he could see Encke in his 7" refractor.
He could
not. And he was man enough to admit it later.
Too many people that I know as truly critical observers agree that it takes minimum of about 9" of perfect (unobstructed) aperture paired with perfect seeing and wide opening of the rings to see Encke/Keeler gap. I'm sharing the sentiment.