File:Einstein cross.jpg
Summary
The European Space Agency's <a href="https://en.wikipedia.org/wiki/Faint_Object_Camera" class="extiw" title="en:Faint Object Camera">Faint Object Camera</a> on board NASA's <a href="https://en.wikipedia.org/wiki/Hubble_Space_Telescope" class="extiw" title="en:Hubble Space Telescope">Hubble Space Telescope</a> has provided astronomers with the most detailed image ever taken of the gravitational lens G2237 + 0305 — sometimes referred to as the <a href="https://en.wikipedia.org/wiki/Einstein_Cross" class="extiw" title="en:Einstein Cross">Einstein Cross</a>. The photograph shows four images of a very distant <a href="https://en.wikipedia.org/wiki/quasar" class="extiw" title="en:quasar">quasar</a> which has been multiple-imaged by a relatively nearby galaxy acting as a <a href="https://en.wikipedia.org/wiki/gravitational_lens" class="extiw" title="en:gravitational lens">gravitational lens</a>. The angular separation between the upper and lower images is 1.6 arcseconds.
Licensing
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 02:41, 4 January 2017 | | 1,915 × 1,849 (707 KB) | 127.0.0.1 (talk) | <p>The European Space Agency's <a href="https://en.wikipedia.org/wiki/Faint_Object_Camera" class="extiw" title="en:Faint Object Camera">Faint Object Camera</a> on board NASA's <a href="https://en.wikipedia.org/wiki/Hubble_Space_Telescope" class="extiw" title="en:Hubble Space Telescope">Hubble Space Telescope</a> has provided astronomers with the most detailed image ever taken of the gravitational lens G2237 + 0305 — sometimes referred to as the <i><a href="https://en.wikipedia.org/wiki/Einstein_Cross" class="extiw" title="en:Einstein Cross">Einstein Cross</a></i>. The photograph shows four images of a very distant <a href="https://en.wikipedia.org/wiki/quasar" class="extiw" title="en:quasar">quasar</a> which has been multiple-imaged by a relatively nearby galaxy acting as a <a href="https://en.wikipedia.org/wiki/gravitational_lens" class="extiw" title="en:gravitational lens">gravitational lens</a>. The angular separation between the upper and lower images is 1.6 arcseconds. </p> |
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