What caused the rare structure of the Polar Ring Galaxy NGC 660 – COSMIC TRIBUNE
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IT’S NOT JUST IN YOUR MIND!

What caused the rare structure of the Polar Ring Galaxy NGC 660

[CLICK ON IMAGE FOR HIGH RESOLUTION, Gemini Observatory, AURA, Travis Rector (Univ. Alaska Anchorage)]

PolarRingNGC 660 is featured in this cosmic snapshot, a sharp composite of broad and narrow band filter image data from the Gemini North telescope on Mauna Kea.

Over 20 million light-years away and swimming within the boundaries of the constellation Pisces, NGC 660’s peculiar appearance marks it as a polar ring galaxy. A rare galaxy type, polar ring galaxies have a substantial population of stars, gas, and dust orbiting in rings nearly perpendicular to the plane of the galactic disk.

The bizarre-looking configuration could have been caused by the chance capture of material from a passing galaxy by a disk galaxy, with the captured debris eventually strung out in a rotating ring. The violent gravitational interaction would account for the myriad pinkish star forming regions scattered along NGC 660’s ring.

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