- A1689-zD1
A1689-zD1 is the most distant and therefore oldest
galaxy discovered as of February 2008.cite web
title = Astronomers Eye Ultra-Young, Bright Galaxy in Early Universe
publisher =nasa .gov
date = 2008-02-12
url = http://www.nasa.gov/centers/jpl/news/Spitzer20080212.html
accessdate = 2008-02-25 ] cite web
title = Astronomers Uncover One of the Youngest and Brightest Galaxies in the Early Universe
publisher = Space Telescope Science Institute Baltimore, Md. /nasa .gov
date = 2008-02-12
url = http://www.nasa.gov/mission_pages/hubble/science/young_bright.html
accessdate = 2008-02-25 ]Due to its distance, 12.8 billion light-years, and the according considerable redshift, ~7.6cite web
title= heic0805: Hubble finds strong contender for galaxy distance record
publisher= ESA/Hubble
date= 2008-02-12
url= http://www.spacetelescope.org/news/html/heic0805.html
accessdate= 2008-04-04] , the galaxy's faint light reaches us at infrared wavelengths. It could only be observed withHubble Space Telescope 's "Near Infrared Camera and Multi-Object Spectrometer" and theSpitzer Space Telescope 's "Infrared Array Camera" exploiting the natural phenomenon ofgravitational lensing : Thegalaxy cluster Abell 1689 , which lies between Earth and A1689-zD1, at a distance of 2.2 billion light-years from us, functions as a natural "magnifying glass" for the light from the far more distant galaxy which lies directly behind it, at 700 million year after the Big Bang, as seen from Earth.ee also
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IOK-1 References
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