Астронет: Астрономическая картинка дня Чикагохендж: равноденствие в упорядоченном городе http://variable-stars.ru/db/msg/1402037/eng |
Credit & Copyright: Anthony Artese
Explanation:
Sometimes, in a way, Chicago is like a modern
Stonehenge.
The way is east to west, and the time is today.
Today, and every
equinox, the
Sun will set exactly to the west, everywhere on
Earth.
Therefore, today in
Chicago,
the Sun will set directly down the long equatorially-aligned
grid of streets and buildings, an event dubbed
#chicagohenge.
Featured here is a
Chicago
Henge
picture taken during the last
equinox in mid-September of 2017 looking along part of Upper Wacker
Drive.
Many
cities, though,
have streets or other
features that are
well-aligned to Earth's spin axis.
Therefore, quite possibly, your
favorite street may also run east - west.
Tonight at sunset, with a quick glance, you can
actually
find out.
Authors & editors:
Robert Nemiroff
(MTU) &
Jerry Bonnell
(USRA)
NASA Web Site Statements, Warnings,
and Disclaimers
NASA Official: Jay Norris.
Specific
rights apply.
A service of:
LHEA at
NASA /
GSFC
& Michigan Tech. U.