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Credit & Copyright: Chuck Bueter
(Nightwise.org)
Explanation:
Today is the
September
equinox.
Heading south, the Sun's path through the sky will cross
the celestial equator at
20:02 UT.
Of course the equinox date results in (mostly) equal night and day all over
planet Earth.
But on August 21 the Sun's path through the sky found a little
extra-night for some.
Made with a drink can pinhole camera and light-sensitive paper,
this creative solargraph
follows the Sun's path on that date.
An all-day exposure, it traces the Sun's arc
still rising high in northern skies,
aligned with a panoramic snapshot of the local landscape at the bottom.
The gap in the arc represents the duration of the
partial and total phases of
the solar eclipse in clear skies over
Lowman, Idaho, USA.
There, the extra-night (totality)
lasted for about 2 minutes.
The broad gap in the Sun's arc also covers the loss of sunlight during the
more extended partial eclipse phases.
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NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: total solar eclipse - equinox
Publications with words: total solar eclipse - equinox
See also: