As fall officially begins with the autumnal equinox, one of Chicago’s most iconic images will return with “Chicagohenge” sunrises and sunsets aligned with the city’s street grid.
The phenomenon occurs twice a year, as the sun also aligns with Chicago’s grid during the vernal equinox when spring begins.
According to researchers at the Adler Planetariumthis year’s “Chicagohenge” will be visible on Sunday and Monday, with views at sunrise when facing east and at sunset when facing west.
Some popular spots for the phenomenon include the intersections of Kinzie Street and Madison Street, with views down Randolph Street just north of Millennium Park serving as one of the most popular destinations for those looking for the perfect photograph of the view.
The fall equinox will occur on September 22 just before 8 a.m. Central Daylight Time, according to NASA.
The reason Chicago can have an event like “Chicagohenge” is because of its symmetrical grid, which is almost perfectly aligned in an east-west format. Other cities are also experiencing the phenomenon, including New York and Toronto, but Chicago has offered some of the most striking images captured of the event.