The end result has everything to do with seeing, as it’s the turbulence in the atmosphere that convolves the airy disc and bloats the stars in our images.
With a scope of around 500mm focal length, I think you’d be pleasantly surprised at just how much detail you can pick up, before trawling with drizzle. The sub-pixel information leveraged in drizzle is not going to give you a 2x increase in detail...just a bigger image.
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