SKY · LIGHT POLLUTION · CANADA
Dark-Sky Sites Near Calgary
Like most large cities, the centre of Calgary sits high on the Bortle scale (around class 8), so the Milky Way and faint stars are lost to the glow. For dark sky, head well away from the city lights. There's no famous dark-sky reserve right on the doorstep, so reaching a genuinely dark sky from Calgary means putting some distance between you and the city glow.
Bortle class is an authored estimate for the city centre, on the standard Bortle dark-sky scale — not a measured figure.
Finding dark sky from Calgary
There's no headline dark-sky reserve immediately nearby, so the rule of thumb is distance and elevation: head away from the city and any coastal or valley glow, aim for higher ground if you can, and look for somewhere the horizon is dark in the direction you want to observe. Even an hour or two out can drop you several Bortle classes.
Plan tonight from Calgary
More sky over Calgary
SEE IT ON THE MAP
The live sky map shows the day/night line over Calgary in real time.