Welcome to the web home of The Hudnall Planetarium.  The Hudnall is located in the heart of the Tyler Junior College main campus in Tyler, Texas near the intersection of Lake Avenue and Mahon Street. The Hudnall is the world's oldest East Texas planetarium. It was built in 1963 and boasts a 30-foot diameter, domed theater and an assortment of telescopes. Email Hudnall Planetarium planetarium@tjc.edu The Hudnall Planetarium is part of Tyler Junior College in Tyler, Texas. This page maintained by Hudnall Planetarium.