Cartwheel Galaxy Region
Depicts: The Cartwheel Galaxy, IRAS 00352-3359
Copyright: Curt Struck and Philip Appleton (Iowa State University), Kirk Borne(Hughes STX Corporation), and Ray Lucas (Space Telescope Science Institute), and NASA
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The Cartwheel's nucleus is shown in this Hubble Space
Telescope color-coded image. The comet-like knots of gas are mostly confined to the core's left side. They are the blue knots arranged in a semi-circular pattern around the center of the nucleus. The "heads" are a few hundred
light-years across; the tails are more than 1,000 light-years long, the longest of which is nearly 5,000 light-years.
The structures look like comets because they probably were spawned by a collision between high-speed and slower-moving material. This collision created an arrowhead-shaped
pattern called a bow shock, which is similar to the wake of a boat speeding across a lake.
Last Update: 1 September 2019