Quote:
Originally Posted by Rod66
Good powerpoint. Why does he refer to M33 as the easiest galaxy to resolve outside the magellanic clouds? I would have thought M31 and NGC253 far easier to see than M33...?
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They are easier to see, but it is harder to see detail within them, which is what "resolving them" refers to. NGC 604 which is a massive HII region within M33 can be seen in a scope as small as 3" to 4". Whilst M31 and NGC 253 are easier to see, you can't resolve detail in them with a scope that small.
In a 10" or 12" scope you can see an enormous amount of detail in M33, if your skies are dark enough.
Cheers,
John B