The SDSS imaging camera took its first science quality data the night of September 19, 1998, and was the world’s most productive wide-field imaging facility until its last night of science quality data on November 18, 2009. In between it took a total of around 35,000 square degrees of images, covering a unique footprint of 14,055 square degrees of sky.

For more information on SDSS imaging, as well as access to the imaging data and tutorials, please follow this link to the SDSS-IV imaging webpages.