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York University Observatory

This website contains essential information about the York University Astronomical Observatory.  For more details, including up-to-date news, archived images, and access to online public viewing (OPV), visit



Online Public Viewing (OPV)


A legacy project of the world wide celebrations for the International Year of Astronomy, the Observatory is pleased to continue offering our online viewing experience.

The campus observing facilities are available to the public, online, every Monday night of the year for 2 hours.

Not only will images from the 40 cm and 60 cm reflecting telescopes be transmitted to the website, images from a wide-field refractor as well as the campus All-sky Meteor camera will be visible.  An interactive chat session will allow questions from the public to be answered by members of the Observatory team who will be hosting this experience.  Depending on the observing conditions, requests will be taken and if possible, will be added to the viewing live.


Click here to go to the online viewing website.    Enjoy!

Public Viewing


The Observatory welcomes public interest and is delighted to promote the field of astronomy to all visitors. Our public viewing program runs all year round and is  popular with the local and visiting communities. On public viewing nights, visitors are able to observe selected celestial objects in the presence of friendly staff, in addition to engaging in various on-hand presentations. The observatory is open regardless of weather conditions, even though viewing through the telescope is limited to clear skies. If it's cloudy, drop in for a slide show, a planetarium show, and a tour featuring both of our telescopes.


Visits to the Observatory are free. However, donations are kindly appreciated.
See one of the staff if you wish to make a donation.


For more information, e-mail This e-mail address is being protected from spambots. You need JavaScript enabled to view it , or phone our Information line: (416) 736-2100 ext. 77773 (voice mail)


Observing Hours


The Observatory is open for online viewing Monday nights and public (in-person) viewing on Wednesday nights at the following times:

  • October - March      7:30 - 9:30 PM
  • April - September   9:00 - 11:00 PM


Directions and Feedback


The Observatory is on the fourth floor of the Petrie building.

Director: Paul Delaney

Copyright © 2009 Faculty of Science - York University --- © 2009 York University
355 Lumbers Bldg. - 4700 Keele Street - Toronto - Ontario - Canada - M3J 1P3