Holcomb Observatory and Planetarium

Holcomb Observatory and Planetarium
Holcomb Observatory and Planetarium
Holcomb Observatory and Planetarium

Public Nights will be on the evenings of December 4, 5 only.  We will then close for Winter Break until late January 2016.

No reservations are needed for Public tours (Friday & Saturday evenings listed above).   For Private tours and planetarium shows please email  us or call 317-940-8333.

  • Doors Open at 7:00 PM
  • Planetarium and Star Show (rain or shine) at 7:30 PM
  • Telescope Viewing from 8:30 to 10:00 PM
    weather permitting; see our  ClearSky Clock)

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 listed above or groups can schedule private tours at other times.  Please go to the tours tab to the right for more information.

Come see Saturn and its rings, the Moon, perhaps Uranus and Neptune for your very first time!

During the most of 2015 the main telescope will be undergoing a $400,000 refurbishment by Astronomical Consultants and Equipment. The construction is now in its final phase with reassembly of the telescope occurring. We will still continue to have telescope viewing and planetarium shows as usual. A portable GPS computer-controlled telescope will be used in the meantime for viewing the planets, Moon, and stars. This telescope gives us great views of the planets. We are looking forward to having our greatly improved main 38-inch telescope back online late 2015. Look for an announcement as the date approaches.

ClearSky Clock


"For accessibility information or to request disability-related accommodations, please visit http://www.butler.edu/event-accommodations/. "



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Holcomb Observatory & Planetarium

4600 Sunset Ave.
Indianapolis, IN 46208
(317) 940-8333