DDO Global Star Party for International Astronomy Day! 2025

Celebrate International Astronomy Day with a Global Star Party at the Richmond Hill David Dunlap Observatory.

Join us for a world-wide live stream of events from here and from around the world hosted from the David Dunlap Observatory with the Royal Astronomical Society of Canada.

Since this is a live streamed event, attendees will be asked to sign a film waiver.

All individuals/family members attending this program must be registered and a registered adult must accompany any registered participants under the age of 16.

Please wear / bring appropriate supplies for being outdoors and arrive 15 minutes prior to the program start time in order to be signed in.

This program runs rain or shine. 

Who can attend: Everyone

Fee for up to 14 years old: $23.41
Fee for 15 or more years old: $26.45

Registration Link: 

• ActiveRH - First Session - 7:00 PM - 8:30 PM
• ActiveRH - Second Session - 9:00 PM - 10:30 PM
• Watch live: https://www.explorescientific.com/pages/spring-astronomy-day-170th-global-star-party-rasc-explore-alliance

Location: David Dunlap Observatory (DDO) , Ontario Science Centre

Organized by: RASC, Toronto Centre