Einstein ring

in #space • 8 years ago

EinsteinRing_light_bending.jpg

In observational astronomy an Einstein ring, also known as an Einstein–Chwolson ring, is the deformation of the light from a source (such as a galaxy or star) into a ring through gravitational lensing of the source's light by an object with an extremely large mass (such as another galaxy or a black hole).

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#nature #cosmos
8 years ago in #space by
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