Gravitational Lens G2237 + 0305
Date: 13 September 1990
Satellite: Hubble Space Telescope
Depicts: Einstein Cross
Copyright: NASA and ESA
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The European Space Agency's Faint Object Camera on board the Hubble Space Telescope has provided astronomers with the most detailed image ever taken of the gravitational lens G2237 + 0305 - sometimes referred to as the "Einstein Cross". The photograph shows four images of a very distant quasar which has been multiple-imaged by a relatively nearby galaxy acting as a gravitational lens. The angular separation between the upper and lower images is 1.6 arc seconds.
Last Update: 1 September 2019