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== Photography ==

== Photography ==

'''The Hubble Ultra Deep Field''' is a picture taken by [[Hubble Telescope]]'s Advanced Camera for Surveys (ACS) and the Near Infrared Camera and Multi-object Spectrometer (NICMOS) of an "empty area" one tenth the diameter of a full moon when viewed from Earth. The 11.5 square [[arc minute]] area is equivalent to a grain of sand held at arm's length. Taken over a period of almost 11 days, the picture required 400 orbits around Earth and 800 exposures, which is equivalent to approximately 1 million seconds of exposure time. With an estimated 10,000 [[galaxy|galaxies]] in this image, nearly every speck of light is an entire galaxy or group of galaxies.

'''The Hubble Ultra Deep Field''' is a picture taken by [[Hubble Telescope]]'s Advanced Camera for Surveys (ACS) and the Near Infrared Camera and Multi-object Spectrometer (NICMOS) of an "empty area" one tenth the diameter of a full moon when viewed from Earth. The 11.5 square [[arc minute]] area is equivalent to a grain of sand held at arm's length. Taken over a period of almost 11 days, the picture required 400 orbits around Earth and 800 exposures, which is equivalent to approximately 1 million seconds of exposure time. With an estimated 10,000 [[galaxy|galaxies]] in this image, nearly every speck of light is an entire galaxy or group of galaxies.

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Image:Hudf-illustration.jpg|Location of the Hubble Ultra Deep Field in the sky.

Image:Hudf-illustration.jpg|Location of the Hubble Ultra Deep Field in the sky.

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==Also See==

==Also See==