At the 18-megaparsec distance from us of M87, what would be the physical size limit that corresponds to the Hubble Space Telescopes angular resolution limit of 0.05 arc seconds?

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    about 5 parsecs, comparable to the distance to our nearest few dozen neighboring stars
     about 0.9 parsecs, a bit less than the distance to our nearest neighboring stars
     about 60 milliparsecs, roughly 200 times the size of our solar system
     about 0.2 milliparsecs, roughly the size of our solar system
     about 0.2 parsecs, roughly 1000 times the size of our solar system
asked Sep 20, 2012 in Astronomy by anonymous
    

1 Answer

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about 5 parsecs, comparable to the distance to our nearest few dozen neighboring stars
answered Sep 22, 2012 by SkyStar ~Expert~ (2,855 points)

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