Interesting object - Gravitational lens

https://www.legacysurvey.org//viewer/?ra=156.6527&dec=57.2527&layer=ls-dr10&zoom=11

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Don’t think so sadly. Lenses don’t tend to be that large or noticeable from close galaxies. I would think they are stellar streams

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indeed they are (stellar streams that is)

Might be shells from post merger events

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Yes, could also be that.

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