A Picturesque Equinox Sunset

APOD: 2022 March 20 - A Picturesque Equinox Sunset

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

2022 March 20
The featured image depicts a sunset down a country road
in Illinois. On an equinox, the Sun rises and sets directly
down east-west running roads like this. Many towns have them.
Please see the explanation for more detailed information.

A Picturesque Equinox Sunset
Image Credit & Copyright: Roland Christen

Explanation: What's that at the end of the road? The Sun. Many towns have roads that run east - west, and on two days each year, the Sun rises and sets right down the middle. Today is one of those days: an equinox. Not only is today a day of equal night ("aequus"-"nox") and day time, but also a day when the sun rises precisely to the east and sets due west. Featured here is a picturesque road in northwest Illinois, USA that runs approximately east -west. The image was taken during the March Equinox of 2015, and shows the Sun down the road at sunset. In many cultures, this March equinox is taken to be the first day of a season, typically spring in Earth's northern hemisphere, and autumn in the south. Does your favorite street run east - west? Tonight, at sunset, you can find out with a quick glance.

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The Sky in 2021
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