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Brian Peterson | all galleries >> Galleries >> Galaxies > M 104 - The Sombrero Galaxy
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April 29, 2011

M 104 - The Sombrero Galaxy

M 104, the "sombrero galaxy", is a spiral galaxy that we see nearly edge-on
in the constellation Virgo. It has an unusually large central bulge, and a
prominent dust lane that rings the edge of the galaxy's main disk. M 104 is
unusually rich in globular clusters,those spherical communities of stars that
populate a galaxy's outer halo. Estimates of the number of globular clusters
in M 104 range as high as 2000, 10 times more than our Milky Way Galaxy contains.
These globular clusters seem to come in 2 distinct generations. The younger population
of clusters may have been captured from other galaxies that have merged with M 104,
or they may have formed within M 104 more recently than the older clusters. (See the
other 104 image in this gallery for the location of some of these globular clusters).
M 104 is 50,000 light years across (about half the size of the Milky Way), and it
is 29 million light years from earth.

Image data:
Camera: SBIG STL-1100
Exposure: LRGB = 150:40:30:40
Telescope: 12.5" Hyperion


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