Credit & Copyright: Betul Turksoy
Explanation:
An
analemma is that
figure-8 curve you get when you mark
the position of the Sun at the same
time each day for one year.
But the trick to imaging an
analemma of the Moon is to wait bit
longer.
On average the Moon returns to the same position in the sky
about 50 minutes and 29 seconds later each day.
So photograph the Moon 50 minutes 29 seconds
later on successive days.
Over one lunation or lunar month it will trace out an analemma-like curve
as the Moon's actual position wanders due to
its tilted and
elliptical orbit.
Since the
featured image was taken over two months,
it actually shows a double lunar
analemma.
Crescent
lunar phases too thin and faint to capture
around the
New moon
are missing.
The two months the persistent astrophotographer chose were during a
good stretch of weather during July and August, and the location
was Kayseri,
Turkey
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:
Moon - lunation - Luna - lunnyi cikl
Publikacii so slovami: Moon - lunation - Luna - lunnyi cikl | |
Sm. takzhe:
Vse publikacii na tu zhe temu >> | |
