Polar-ring galaxy: Difference between revisions
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A '''polar-ring galaxy''' is a relatively rare type of galaxy, with only around 100 examples known. The best know example is [[NGC 4650A]]. It is theorized that the structure of these galaxies result from the collision of two galaxies. The collision results in a structure composed of two rings of material rotating at an approximate right angle to each other. | A '''polar-ring galaxy''' is a relatively rare type of galaxy, with only around 100 examples known. The best know example is [[NGC 4650A]]. It is theorized that the structure of these galaxies result from the collision of two galaxies. The collision results in a structure composed of two rings of material rotating at an approximate right angle to each other. | ||
==Examples of Polar-ring Galaxies== | ==Examples of Polar-ring Galaxies== | ||
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[[Image:Image-PGR2.jpg|600px]] | [[Image:Image-PGR2.jpg|600px]] | ||
==Types of Polar-ring galaxies== | ==Types of Polar-ring galaxies== | ||
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[[Image:TPRG1137.jpg|400px]] | [[Image:TPRG1137.jpg|400px]] | ||
==Formation of Polar-ring galaxies== | ==Formation of Polar-ring galaxies== | ||
It is theorized that the structure of these galaxies result from the collision of two galaxies. The collision results in a structure composed of two rings of material rotating at an approximate right angle to each other. | It is theorized that the structure of these galaxies result from the collision of two galaxies. The collision results in a structure composed of two rings of material rotating at an approximate right angle to each other. | ||
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[[Image:Form-PRG.jpg|400px]] | [[Image:Form-PRG.jpg|400px]] | ||
==List of Polar-ring galaxies== | ==List of Polar-ring galaxies== | ||
Revision as of 19:01, 12 March 2007
A polar-ring galaxy is a relatively rare type of galaxy, with only around 100 examples known. The best know example is NGC 4650A. It is theorized that the structure of these galaxies result from the collision of two galaxies. The collision results in a structure composed of two rings of material rotating at an approximate right angle to each other.
Examples of Polar-ring Galaxies
Template:Cleanup-image File:Image-PGR2.jpg
Types of Polar-ring galaxies
Template:Cleanup-image File:TPRG1137.jpg
Formation of Polar-ring galaxies
It is theorized that the structure of these galaxies result from the collision of two galaxies. The collision results in a structure composed of two rings of material rotating at an approximate right angle to each other.
Template:Cleanup-image File:Form-PRG.jpg
List of Polar-ring galaxies
References
Hubblesite.org Retrieved 3/06, 1/07
External links
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