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Old January 3rd 07, 03:25 PM posted to uk.sci.astronomy
Boo
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Posts: 31
Default Relative sizes / distances between stars and galaxies

Distance from Sun to Alpha Centauri --- about 4.35 light-years = 41.2 x
10^12 km

Diameter of the Sun --- about 1.4 x 10^6 km

So let's take a ration of distance to Alpha Centauri with respect to dia.
Sun --- 41.2 x 10^12 km/1.4 x 10^6 km = 29,000,000

So there's enough room between our Sun and the next star system for 29
million sun's lined side by side.


....snip...

Distance to LMC is about 180,000 light years

Diameter of the Milky Way galaxy is about 100,000 light years

so let's take a ration of dist. to LMC with respect to the diameter of Milky
Way and we get 180,000/100,000 = 1.8

So there is not even enough room between these neighboring galaxies for 2
Milky Ways!!

Thanks for that, that was the type of info I was looking fro, but can anyone say
what the average size of a galaxy is and the average distance between them ?

Thanks again,

--
Boo