You must stay with the group at all times, wandering around the building is not permitted. Open House Open house is held once a year it differs from the tour in that more of the building is opened to the public. Instead of having a tour guide, you follow a designated tour path around the building. All three of the main telescopes are outfitted for visual use and the members of the Amateur Astronomers Association of Pittsburgh set up additional telescopes on the front lawn. You must get tickets to this event and they are free of charge you may do so by calling the number listed above.
Open house is a family night therefore the maximum group size is approximately six.
This event is usually held on a selected date in the fall. The year 2000 open house date has not been set.