On Sunday, September 22, at 8:44 a.m. EDT, Earth will reach the September equinox point. The almost last-quarter Moon will rise around 10 or 11 p.m. daylight-saving time on Monday, September 23. On Tuesday, September 24, the wide W pattern of Cassiopeia will tilt up high in the northeast after dark. The waning Moon will be nearly aligned with Castor and Pollux, and other celestial bodies will be visible in the night sky. https://skyandtelescope.org/astronomy-news/observing-news/this-weeks-sky-at-a-glance-september-20-29/