SDSS ivo://nasa.heasarc/skyview/sdss NASA/GSFC HEASARC Sloan Digital Sky Survey Team Skyview Project 2026-04-03 SkyView Help Skyview at skyview.gsfc.nasa.gov surveys The Sloan Digital Sky Survey is the deepest large scale survey of the sky currently available. SkyView dynamically queries the SDSS archive (current release DR16) to retrieve data and resample it into the user requested frame. All releases after DR9 are spectra only, so all imaging data originates from DR9. Further information about SDSS and many additional services are available at the <a href="https://www.sdss.org">SDSS website</a>. Provenance: Sloan Digital Sky Survey Team. This is a service of NASA HEASARC. https://skyview.gsfc.nasa.gov Archive Research service-for HEASARC https://skyview.gsfc.nasa.gov/cgi-bin/vo/sia.pl?survey=sdss& GET text/xml+votable POS Search Position in the form "ra,dec" where ra and dec are given in decimal degrees in the ICRS coordinate system. degrees real SIZE Size of search region in the RA and Dec. directions. degrees real FORMAT Requested format of images. string CFRAME Coordinate frame: ICRS, FK5, FK4, GAL, ECL string EQUINOX Equinox used in FK4 or FK5 frames. real Cutout 360.0 180.0 360.0 180.0 5000 10000000 500 0 0 1 1 https://skyview.gsfc.nasa.gov/cgi-bin/query.pl Optical