Holcomb Observatory & Planetarium
Holcomb Observatory and Planetarium has been serving Butler University students and the Indianapolis public for over 60 years. The observatory, one of the largest public observatories in the world, houses a 38-inch Cassegrain reflector in addition to a number of smaller telescopes. It is the ninth largest telescope East of the Mississippi River. The observatory can be visited during our regular public tours or groups can schedule group tours at other times.
The telescope has recently undergone a $425,000 refurbishment by Astronomical Consultants and Equipment to greatly improve its optics, operation, and research ability. It is now fully operating again and giving us superb views of our Indiana night sky.
Fall 2018 Programming
Holcomb Observatory has replaced its planetarium projector with a new digital projector providing visitors with a fulldome 3D immersive experience. Our fall program is Phantom of the Universe: The Hunt for Dark Matter. Visit our weekend tours page, or follow us on Facebook for up-to-date information on the sky, dates, and times. If a weekend doesn’t work, consider scheduling a group tour for your group at another time.