As of DR6, PSF photometry uses the same PSF models (and sky background subtraction) for zero - point - fitting as is later used in cataloging. (legacysurvey.org)
Night Sky Background measurements by the Pierre Auger Fluorescence Detectors and comparison with simultaneous data from the UVscope instrument (auger.org)
The beautiful Heritage Lace Silent Night Table Runner features shepherds, the Holy Family and the Magi in a relief motif on a starry sky background. (bedbathandbeyond.com)