Knocked this together in Chat GPT. Couple of rounding errors but on the whole - helpful.
It shows clearly just how little exposure we need compared to the average home telescope.
The second chart below allows you to compare to F/Stops so you can compare your scope at home to any other scope!
“There are no bad pictures; that's just how your face looks sometimes.”
― Abraham Lincoln
These really are useful. I set mine relative to F4.0, which is the fastest scope I own, so that for each exposure at F4.0 there are corresponding exposures for all of my other scopes (and for the piers that i use). It's particularly useful when you can't take a couple of images to test the exposure, as happens with requests.
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