National Research Council Canada
Symbol of the Government of Canada

Planisphere

Warning Information found on this page has been archived and is for reference, research or recordkeeping purposes. Please visit NRC's new site for the most recent information.

Archived Content

Information identified as archived on the Web is for reference, research or recordkeeping purposes. It has not been altered or updated after the date of archiving. Web pages that are archived on the Web are not subject to the Government of Canada Web Standards. As per the Communications Policy of the Government of Canada, you can request alternate formats by contacting us.


On this Planisphere viewer, the Earth's east and west coordinates appear to be reversed since the sky is over our heads. You can verify this by downloading and constructing your own planisphere.

HTML version

The planisphere oval represents a 'window' of the night sky for most Canadians*. For each day of the year, the position of the stars and constellations is shown for Midnight, not taking into consideration Daylight Savings Time, which varies from province to province. Therefore, you may notice slight adjustments in the exact position of the stars in Canadian night skies.

The constellations close to the Southern Horizon will be in front of you when you look southward. Similarly, the stars close to the Northern Horizon will be in front of you when you look northward. The same rule applies for constellations close to the Eastern and Western Horizons. The stars in the middle of the oval will be directly over your head.

*Canadians living between 45° and 55° latitude.