How faint are the farthest objects?The orbiting observatory collected one photon of light per minute from the dimmest objects. Normally, the telescope collects millions of photons per minute from nearby galaxies.
How many orbits did it take to make the observations?
It took 400 orbits to make the observations.
How many exposures were needed to make the observations?
The Hubble telescope's Advanced Camera for Surveys' wide-field camera snapped 800 exposures, which equals two exposures per orbit. The exposures were taken over four months, from Sept. 24, 2003 to Jan. 16, 200
How much viewing time was needed to make all the exposures?
The 800 exposures amounted to about 1 million seconds or 11.3 days of viewing time. The average exposure time was 21 minutes.
How many galaxies are in the image?
The image yields a rich harvest of about 10,000 galaxies.
