7
June
Solar Observing at Millennium Square - June 2025 (No-Go due to Smoke)
Come join us along the Lake Ontario shoreline to safely observe exciting sunspot activity and solar prominences through our solar telescopes! The Sun has been very active lately, producing auroras over Canada and around the world.
2
June
DDO Bring Your Own Binoculars Stargazing Night - June 2025 (GO for Monday)
Bring your own binoculars for a free, guided tour of the night sky.
31
May
David Dunlap Observatory 90th Anniversary Star Party (Please check the sky for clouds)
Free,self-guided tours of the DDO resume 1-5 PM on May 31st, the 90th anniversary of the RHDDO!
3
May
DDO Global Star Party for International Astronomy Day! 2025
Join us for a world-wide live stream of events from here and from around the world hosted from the David Dunlap Observatory!
24
October
Millennium Square Public Star Party - October 24 or 25, 2025
Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.
26
September
Millennium Square Public Star Party - September 26 or 27, 2025
Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.
29
August
Millennium Square Public Star Party - August 29 or 30, 2025
Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.
1
August
Millennium Square Public Star Party - August 1 or 2, 2025 (GO for Friday)
Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.
4
July
Millennium Square Public Star Party - July 4, 2025 (GO for Friday)
Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.
31
May
Millennium Square Public Star Party - May 30 or 31, 2025 (NO-GO for Saturday)
Join us for an evening of free public stargazing along the north shore of Lake Ontario at Millennium Square.