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lainga
on March 25, 2019
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A new Einstein cross is discovered
I was also interested. It seems to be a combination of the intermediate galaxy being elliptical, and the star behind it being off-center from our point of view:
https://physics.stackexchange.com/questions/14056/how-does-g...
quakeguy
on March 25, 2019
[–]
Not a Star behind it, but another galaxy!
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https://physics.stackexchange.com/questions/14056/how-does-g...