Northern Sky: September 17 - 30

Deane Morrison is a science writer at the University of Minnesota, where she authors the Minnesota Starwatch column.

In the evening sky, the Summer Triangle high in the south, binoculars needed for the Coathanger, and Venus low in the west; Mercury best seen in the morning sky on September 29; Jupiter moves from the evening to the morning sky; the Fall Equinox on September 22; and in news: a cryovolcano on the dwarf planet Ceres.

(photo of the Summer Triangle by NASA via Wikimedia Commons)