Which instruments were used to construct the Hubble Ultra Deep Field (HUDF) image?
Answer
Advanced Camera for Surveys (ACS) and Near Infrared Camera and Multi-Object Spectrometer (NICMOS)
The construction of the Hubble Ultra Deep Field (HUDF) required significant technical refinement, specifically utilizing data gathered by two key instruments: the Advanced Camera for Surveys (ACS) and the Near Infrared Camera and Multi-Object Spectrometer (NICMOS). These instruments were crucial because they provided the necessary sensitivity to capture the faintest, reddest light traveling from the earliest epochs of the universe. Peering into the infrared spectrum is essential as the expansion of the universe stretches the light from the most distant objects out of the visible range through a process known as redshift.

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What was the commonly cited number of galaxies shown by the Hubble Ultra Deep Field (HUDF)?Which instruments were used to construct the Hubble Ultra Deep Field (HUDF) image?How small was the region of the sky targeted by the Hubble Ultra Deep Field (HUDF) relative to the total sky area?What was the initial galaxy count reported when the Hubble Ultra Deep Field (HUDF) results were first published?Approximately how long was the cumulative exposure time required to accumulate the light for the HUDF?What was the approximate number of galaxies cataloged in the initial Hubble Deep Field (HDF) observation?Why were instruments like NICMOS necessary for constructing the HUDF image using Hubble?What next-generation observatory is prioritizing revisiting the HUDF area to build upon Hubble's foundation?How did the HDF compare to the HUDF in terms of initial exposure duration?What variety of galactic structures did the Hubble Deep Field (HDF) observation reveal in its cross-section of cosmic time?