https://ideawaza.com/api.php?action=feedcontributions&feedformat=atom&user=132.205.45.148 2026-09-30T12:30:55Z User contributions MediaWiki 1.46.0 https://ideawaza.com/index.php?title=Ring_galaxy&diff=23254 2004-09-03T01:17:20Z

<p>132.205.45.148: </p> <hr /> <div>A '''ring galaxy''' is a [[galaxy]] with a [[ring]]-like appearance. The ring consists of massive, relatively young blue [[star]]s, which are extremely bright. The central region contains relatively little luminous [[matter]]. [[Astronomy|Astronomers]] believe that ring galaxies are formed when a smaller galaxy passes through the center of a larger galaxy. Because most of a galaxy consists of empty space, this &quot;collision&quot; rarely results in any actual collisions between stars. However the [[gravity|gravitational]] disruptions caused by such an event could cause a [[wave]] of star formation to move through the larger galaxy.<br /> <br /> [[Hoag's Object]], discovered by [[Art Hoag]] in [[1950]] is an example of such a galaxy.<br /> <br /> {{stub}}<br /> <br /> [[Category:Galaxies]]</div>

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