arc or lens
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by Starfog
What determines the arc in this galaxy? Or is it lensing?
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by Budgieye moderator
The arc is an area of the galaxy. The dark line is probably an artifact. Images of lenses in this site 3.9 Gravitational lenses http://talk.galaxyzoo.org/#/boards/BGZ0000001/discussions/DGZ0000wrb?page=3&comment_id=53d8b966db90c7620200110c
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