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Questions about astronomy

Northern lights in a starry sky.

Aurora Borealis: when and where to see them

Colorful and moving, the Northern Lights appear in Earth's atmosphere. In Quebec, they are more visible in certain regions.
A camera on a tripod

Capture shooting stars on camera

Shooting star photography, including the Perseids, requires good preparation. Here are technical tips for successful images.
Trajectory of the International Space Station in the sky

See the International Space Station and other artificial satellites pass by

It's easy to identify the International Space Station and man-made satellites. These move like airplanes at high altitudes.
Bright stars in the sky

Sirius, Antares and other bright stars

Some visible stars often seem to blink. The flickering effect, observable under certain conditions, is explained by an optical effect.
The selling of stars is a business practice that is frowned upon

The selling of stars is a business practice that is frowned upon

Some companies sell stars identified from databases. This practice is frowned upon by the Rio Tinto Alcan Planetarium.

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