M100, the 100th object on the
catalog of
Charles Messier, also known as
NGC 4321, is a
spiral galaxy located 17
Mpc from
Earth. The galaxy has a diameter of 36,800
parsecs and is one of the brightest members of the
Virgo cluster of galaxies.
See also:
Messier 100 (http://www.seds.org/messier/m/m100.html), SEDS Messier pages