Will the image of an object inside a gravitational lens, though on the side of the lens that is(adsbygoogle = window.adsbygoogle || []).push({}); facingus, be enlarged/reduced in apparent angular width? If so, how is this quantified, and dimensionless GR values may it be related to (e.g. gravitational length contraction factor, etc.)? Will its brightness be reduced/increased? If so, by how much?

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# Gravitational lenses and objects in front of them

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