Mt. Wilson, CA

For instructions on how to request an observing session on the 60-inch telescope, click "Visitor Information" below, and then refer to the sections "Requesting Viewing Through the 60-inch Telescope" and "Viewing Fee".

Before requesting a specific date, please check the "Calendar of Available Nights" below, to see if the night you are interested in visiting is available. All unavailable nights are marked with an "X".

Please note that nights are scheduled either for the first half of the night or for the full night, based upon the calendar date of the beginning of the session. To request a half or a full night, simply check the appropriate space for "first half" or "full night" on the "60-inch Telescope Time Request & Agreement Form" below.

We are able to schedule a half night of observing for the first half of the night only. Logistical problems preclude us from scheduling two different groups for the first and second halves of the night. We also do not provide a service for matching different groups to share the same reservation.

Please read the "Visitor Information" section below carefully.


For further information about observing at the 60-inch telescope, contact Susan McAlister. For information regarding tours of the Observatory, please see the "Visiting Information" page of the Mount Wilson Observatory website, which gives details on both the self-guided tours of the Observatory and the docent-led weekend and holiday walking tours.

Last updated on 17 Sep 2008 Top of page