SKY MAP: The Celestial Sea constellations are visible at 9 p.m. local time with two exceptions: Eridanus is below the horizon, as is half of Cetus. The constellations move up in the sky, east to west, during the night, so all of Cetus and part of Eridanus becomes visible low on the horizon by midnight. This view shows the sky at midnight in late September, as seen from mid-northern latitudes.
