Sun Star was designed to celebrate the Texas Sesquicentennial. It was suspended above the plaza of the Amarillo Museum of Art. As the sun moved daily across the sky, an ever-changing shadow was cast. On March 2, 1986, at noon, the shadow of a perfect five-point Texas star was cast, marking the day of the 150th anniversary of Texas independence. The star shadow only appeared on March 2. As long as the sculpture remained in place, the shadow would appear every March 2 at noon.