Sky Variability in the<i>y</i>Band at the LSST Site
Sky Variability in the<i>y</i>Band at the LSST Site
We have measured spatial and temporal variability in the y band sky brightness over the course of four nights above Cerro Tololo near Cerro Pachon, Chile, the planned site for the Large Synoptic Survey Telescope (LSST). Our wide-angle camera lens provided a 41 deg field of view and a 145 …