Saturday marks the fall equinox, the official end of summer and start of autumn
September 22, 2012 — The summer is officially over and the northern hemisphere is now in Autumn, as of 10:49 a.m. EDT.
For the first few weeks of autumn, the zodiac lights phenomenon will be more visible.
Saturday marks the autumn equinox, when the earth's axis is tilted toward the sun such that day and night are almost exactly twelve hours long each.
Its counterpart, the spring equinox, took place on March 20 this year, and heralded the official start of the spring.
The earth's current angle toward the sun also means stargazers have a treat waiting for them in the night sky this month, if you can get away from the city lights.
The zodiac lights will be making their appearance over the next few weeks.
Visible in the eastern sky about an hour before dawn, the lights manifest as a faint white glow.
It's caused by sunlight being scattered by space dust.
Check The Weather Network's Fall Outlook
for what's in store weatherwise in Canada this season.