About 100,000 Light years in diameter and 20,000 Light years in thickness
The Andromeda Galaxy is roughly 100,000 light years in diameter.
The Milky Way is approximately 100,000 light years wide.
Messier 83 (M83) is about 55,500 light years across. About half the size of the Milky Way Galaxy.
Andromeda, our "big sister," is 2.5 million light years away. The magellanic clouds are dwarf galaxies just a few hundred thousand light years off our bow. The Sagittarius Dwarf Galaxy is another satellite galaxy of ours. http://en.wikipedia.org/wiki/Local_Group
The stellar disk of the Milky Way galaxy is approximately 100,000 light years in diameter and about 10,000 light years in thickness.
The M87 is the largest galaxy within the Virgo cluster.It has a diameter of approximately 120,000 light years. The Milky Way Galaxy is a mere 100,000 light years.The Earth for comparison has a diameter of 0.0645 light seconds.
There is no such galaxy, the nearest galaxy is over 2 million light-years away.
Depending on what galaxy you are tlaking about -.-
The light from distant galaxies is redshifted. The only reasonable explanation for that is that the galaxies are moving away from us.
The Andromeda galaxy is approximately 220,000 light-years in diameter. It is the closest spiral galaxy to our Milky Way galaxy.
100,000 light years
The Cartwheel Galaxy is a lenticular galaxy about 500 million light years away in the constellation Sculptor.It is about 150,000 light-years across.