Contents
The HUDF used to be the deepest image of the universe ever taken and it will be used to search for galaxies that existed between 400 and 800 million years after the Big Bang (redshifts between 7 and 12). The furthest object located as of 2011 was UDFj-39546284 at a time of 600 million years after the Big Bang. The red dwarf UDF 2457 at distance of 59,000 light-years is the furthest star resolved by the HUDF. The star near the center of the field is USNO-A2.0 0600-01400432 with apparent magnitude of 18.95.
The field imaged by the ACS contains over 10,000 objects, the majority of which are galaxies, many at redshifts greater than 3, and some that probably have redshifts between 6 and 7. The NICMOS measurements may have discovered galaxies at redshifts up to 12.
Read more about this topic: Hubble Ultra-Deep Field
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