This past weekend, city dwellers were treated to the beauty of Chicagohenge, the biannual celestial event that happens when the sun lines up perfectly with the town's street grid, offering the sort of photo moment that makes for ideal social media fodder and also reminds you of Chicago's charm. Sunday also happened to be the fall equinox, marking the official kickoff to a new season. Below, browse through some of the most stunning photo of Chicagohenge snapped this past weekend and posted to social media, each one capturing the splendor of the astronomical event while paying homage to our very own Chicago.

A post shared by Derek Gould (@derek.infocus) A post shared by Barry Butler Photography (@barrybutler9) A post shared by Astronomy Picture Of The Day (@astronomypicturesdaily) A post shared by Clancy Fraher (@clancyfraher) A post shared by Chicago Wedding Photographer & Videographer (@thelensoftruth) A post shared by Vince Petrella (@vpetrella11) A post shared by Chris (@cdats) A post shared by Barry Butler Photography (@barrybutler9) A post shared by Barry Butler Photography (@barrybutler9).