Globular Cluster M19
Explanation:
M19 appears to be a typical
globular cluster of stars -
except for its shape.
If one looks closely at the cluster,
pictured above,
it appears to be longer (top to bottom) than it is wide.
In fact,
M19 is the most aspherical
globular cluster of the approximately 160
known orbiting the
center of our
Milky Way Galaxy.
M19 lies about 27,000 light-years away, measures about 60
light-years across,
and is home to over 100,000 stars.
The cluster can be found with binoculars towards the
constellation of
Ophiuchus.
The reason for the clusters' odd shape remains unknown,
but might be related to the clusters' close (5000 light-year)
proximity to the
Galactic Center.
Alternatively, the
shape might be an illusion created by an
unusual lane of dark absorbing
dust on one side of the cluster.
Authors & editors:
Robert Nemiroff
(MTU) &
Jerry Bonnell
(USRA)
NASA Web Site Statements, Warnings,
and Disclaimers
NASA Official: Jay Norris.
Specific
rights apply.
A service of:
LHEA at
NASA /
GSFC
& Michigan Tech. U.
