Location The Russell C. Davis Planetarium is located at the corner of Lamar and Pascagoula Streets in the Downtown Cultural Arts District. Exit I-55 at Pearl Street (96A) and turn left at the 5th light (Lamar St). Proceed 1 block and drive under the Planetarium. Car parking is available in the lot behind the Mississippi Arts Center (on the left), and bus parking is along the curb of Lamar Street ((on the right).