|This ancient bubble of gas ejected by a star at the end of its life
has a very distinct shape. The brighter portions almost delineate a
parallelogram. This simple spiral structure could be caused by rotation of
the primary star during the ejection process, or the structure could be
caused by a neighboring star and its gravitational effect.
|L R G B color production was used to create this image.||
Minimum credit line: Gunnar Hurtig /Adam Block/NOAO/AURA/NSF
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