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The setting sun appears over Monroe Street in Chicago on the first evening of autumn on Sept. 22, 2022. The term "Chicagohenge" is used to describe the setting sun between buildings during the vernal and autumnal equinoxes.
John J. Kim / Chicago Tribune
The setting sun appears over Monroe Street in Chicago on the first evening of autumn on Sept. 22, 2022. The term “Chicagohenge” is used to describe the setting sun between buildings during the vernal and autumnal equinoxes.
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People watch as a phenomenon known as
People watch as a phenomenon known as “Chicagohenge,” occurs as the sun sets over Madison Street in Chicago during the fall equinox on Sept. 22, 2022.
The setting sun appears over Monroe Street in Chicago on the first evening of autumn on Sept. 22, 2022. The term
The setting sun appears over Monroe Street in Chicago on the first evening of autumn on Sept. 22, 2022. The term “Chicagohenge” is used to describe the setting sun between buildings during the vernal and autumnal equinoxes.
People take a selfie on the BP Bridge in downtown Chicago on the first day of fall, Sept. 22, 2022.
People take a selfie on the BP Bridge in downtown Chicago on the first day of fall, Sept. 22, 2022.
With the Chicago skyline as a backdrop, people stroll through the Lurie Garden on the first day of fall on Sept. 22, 2022.
With the Chicago skyline as a backdrop, people stroll through the Lurie Garden on the first day of fall on Sept. 22, 2022.
A woman walks in the Lurie Garden in Chicago on the first day of fall Sept. 22, 2022.
A woman walks in the Lurie Garden in Chicago on the first day of fall Sept. 22, 2022.
A bird visits plants that have gone to seed at the Lurie Garden in Chicago on the first day of fall on Sept. 22, 2022.
A bird visits plants that have gone to seed at the Lurie Garden in Chicago on the first day of fall on Sept. 22, 2022.
People interact with their reflections on the Bean in Millennium Park in Chicago on the first day of fall, Sept. 22, 2022.
People interact with their reflections on the Bean in Millennium Park in Chicago on the first day of fall, Sept. 22, 2022.
Jacketed pedestrians stroll along North Michigan Avenue on the first day of fall, Sept. 22, 2022.
Jacketed pedestrians stroll along North Michigan Avenue on the first day of fall, Sept. 22, 2022.
People walk along North Michigan Avenue in Chicago on the first day of fall, Sept. 22, 2022.
People walk along North Michigan Avenue in Chicago on the first day of fall, Sept. 22, 2022.
Bicyclists cross a street as they make their way down Columbus Drive on Sept. 22, 2022.
Bicyclists cross a street as they make their way down Columbus Drive on Sept. 22, 2022.
People enjoy cooler weather on the first day of fall near the Chicago Stock Exchange arch and garden located outside the Art Institute of Chicago.
People enjoy cooler weather on the first day of fall near the Chicago Stock Exchange arch and garden located outside the Art Institute of Chicago.
A woman looks at artist Nancy Rubin's installation at the Art Institute of Chicago on the first day of fall, Sept. 22, 2022.
A woman looks at artist Nancy Rubin’s installation at the Art Institute of Chicago on the first day of fall, Sept. 22, 2022.
Golden light bathes morning rush traffic in Chicago near Austin Boulevard along the Eisenhower Expressway on the first day of fall, Sept. 22, 2022. The autumnal equinox was at 8:03 p.m., Sept. 22, 2022. That's when the sun shines equally on both the Northern and Southern hemispheres  making day and night nearly equal  before crossing the equator to head south.
Golden light bathes morning rush traffic in Chicago near Austin Boulevard along the Eisenhower Expressway on the first day of fall, Sept. 22, 2022. The autumnal equinox was at 8:03 p.m., Sept. 22, 2022. That’s when the sun shines equally on both the Northern and Southern hemispheres — making day and night nearly equal — before crossing the equator to head south.
The Chicago skyline backdrops morning rush hour along Jackson Boulevard on the first day of fall, Sept. 22, 2022.
The Chicago skyline backdrops morning rush hour along Jackson Boulevard on the first day of fall, Sept. 22, 2022.
Inbound and outbound CTA Blue Line trains travel near Austin Boulevard on the first day of fall, Sept. 22, 2022. The rising and setting sun lines up perfectly with the city's east-west street grid today.
Inbound and outbound CTA Blue Line trains travel near Austin Boulevard on the first day of fall, Sept. 22, 2022. The rising and setting sun lines up perfectly with the city’s east-west street grid today.
The sunrise bathes the sides of several buildings along Roosevelt Road near Austin Boulevard on the first day of fall, Sept. 22, 2022.
The sunrise bathes the sides of several buildings along Roosevelt Road near Austin Boulevard on the first day of fall, Sept. 22, 2022.
Power lines east of Austin Boulevard on the first day of fall in Chicago on Sept. 22, 2022.
Power lines east of Austin Boulevard on the first day of fall in Chicago on Sept. 22, 2022.
Sunrise bathes the morning rush hour in the city near Austin Boulevard on the Eisenhower Expressway on the first day of fall. The rising and setting sun lines up perfectly with the city's east-west street grid today.
Sunrise bathes the morning rush hour in the city near Austin Boulevard on the Eisenhower Expressway on the first day of fall. The rising and setting sun lines up perfectly with the city’s east-west street grid today.