Gravitational Lens G2237 + 0305
Date: 13 September 1990
Satellite: Hubble Space Telescope
Depicts: Einstein Cross
Copyright: NASA and ESA
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