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
Famous quotes containing the word contents:
“Such as boxed
Their feelings properly, complete to tags
A box for dark men and a box for Other
Would often find the contents had been scrambled.”
—Gwendolyn Brooks (b. 1917)
“Yet to speak of the whole world as metaphor
Is still to stick to the contents of the mind
And the desire to believe in a metaphor.
It is to stick to the nicer knowledge of
Belief, that what it believes in is not true.”
—Wallace Stevens (1879–1955)
“If one reads a newspaper only for information, one does not learn the truth, not even the truth about the paper. The truth is that the newspaper is not a statement of contents but the contents themselves; and more than that, it is an instigator.”
—Karl Kraus (1874–1936)