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.
Spring 2018 Programming
Holcomb Observatory & Planetarium is replacing its 60-year-old analog planetarium projector with a new digital projector that will provide a fulldome 3-D immersive experience. Visit our tours page, or follow us on Facebook for future dates and times. If a weekend doesn’t work consider scheduling a group tour for your group at another time.