Northern Sky: September 19

Deane Morrison is a science writer at the University of Minnesota. She authors the Minnesota Starwatch column, and contributes to WTIP bi-weekly on the Monday North Shore Morning program through "Northern Sky," where she shares what's happening with stars, planets and more.

Fall equinox arrives at 3:21am on September 23; morning sky activity with Mars, Jupiter, Venus and Regulus; a Harvest Moon on the 27, complete with a total eclipse.