File:Einstein cross.jpg
Einstein_cross.jpg (621 × 600 pixels, file size: 28 KB, MIME type: image/jpeg)
Summary
Description The European Space Agency's Faint Object Camera on board NASA's 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 arcseconds. Date 13 September 1990 Source http://hubblesite.org/newscenter/archive/releases/1990/20/image/a/ Author NASA, ESA, and STScI
Copyright status:
This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that NASA, STScI, and/or ESA is credited as the source of the material. The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:22, 11 August 2012 | | 621 × 600 (28 KB) | Luiz Alexandre Silva (talk | contribs) | Description The European Space Agency's Faint Object Camera on board NASA's 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. Th |
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