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Astronomy Picture of the Day
Galaxy Group Hickson 44
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#99175
by
[z]Barbara Harris
@
20.03.2007 00:00
- nach oben -
Galaxy Group Hickson 44
Explanation: Galaxies, like stars, frequently form groups. A
group of galaxies
is a system containing more than two galaxies but less than the tens or hundreds typically found in a
cluster of galaxies
. A most notable example is the
Local Group of Galaxies
, which
houses over 30 galaxies
including our
Milky Way
,
Andromeda
, and the
Magellanic Clouds
. Pictured
above
is nearby
compact group
Hickson 44. This
group
is located about 60 million
light-years
away toward the constellation of
Leo
. Also known as the NGC 3190 Group,
Hickson 44
contains several bright
spiral
galaxies and one bright
elliptical
galaxy on the upper left. The bright source on the upper right is a foreground star. Many galaxies in
Hickson 44
and other compact
groups
are either slowly merging or
gravitationally pulling
each other apart.
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