Credit & Copyright: Anthony Ayiomamitis
Explanation:
An analemma
is that figure-8 curve you get when
you mark
the position of the Sun at the same time
each day throughout planet
Earth's year.
Above,
47 separate exposures (plus one foreground exposure)
were recorded on a single piece of film to illustrate
this annual cycle of solar motion from March 30, 2003 to March 30, 2004.
In the remarkable foreground are standing Corinthian columns of the
ancient
Temple of Olympian Zeus
in Athens, Greece.
Solstices, like the one
that occurred at 0022 UT on December 22,
correspond to the bottom of the figure-8 or the
southernmost excursion of the Sun in the sky.
The tilt of planet Earth's axis and the variation in speed as
it moves around its orbit combine to produce the graceful
analemma curve.
1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 |
Yanvar' Fevral' Mart Aprel' Mai Iyun' Iyul' Avgust Sentyabr' Oktyabr' Noyabr' Dekabr' |
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Publikacii s klyuchevymi slovami:
analemma - solstice - analemma - solncestoyanie - Solncestoyaniya, tochki
Publikacii so slovami: analemma - solstice - analemma - solncestoyanie - Solncestoyaniya, tochki | |
Sm. takzhe:
Vse publikacii na tu zhe temu >> |