Jupiter is more than twice as massive than the other planets of our solar system combined! Join us at the Richmond Hill David Dunlap Observatory as Jupiter, the Earth, and the Sun all align in their celestial dance - an astronomical arrangement known as opposition.

Do you have a telescope, but don’t know how to use it? Come to the Richmond Hill David Dunlap Observatory can help! Bring your telescope to this workshop to have it assessed and to receive one-on-one instruction on its use outdoors!

Experience a presentation led by astronomy experts and researchers and tour the observatory.

Families will be introduced to the wonders of astronomy through a presentation on a variety of exciting astronomy topics, followed by age-appropriate celestial activities!

Safely observe the sun with us! During these family-friendly sessions, a DDO Astronomer will answer your questions about our closest star: the sun!

Families will be introduced to the wonders of astronomy through a presentation on a variety of exciting astronomy topics, followed by age-appropriate celestial activities!

Safely observe the sun with us! During these family-friendly sessions, a DDO Astronomer will answer your questions about our closest star: the sun!

Experience a presentation led by astronomy experts and researchers and tour the observatory.

Families will be introduced to the wonders of astronomy through a presentation on a variety of exciting astronomy topics, followed by age-appropriate celestial activities!

Ask a DDO Astronomer your astronomy questions!