Credit & Copyright: Chris Cook
Explanation:
In myth,
Atlas holds up the heavens, but in this scene they
seem to pivot around a lighthouse beacon.
Photographed with a camera fixed to a tripod, the well-planned
30 minute exposure
records star trails in the northern sky,
reflecting the daily rotation of planet Earth.
Hidden behind the top of the prominent Nauset Lighthouse
on Cape Cod, Massachusetts, USA, the
North Celestial Pole is at
the center of all the star trail arcs.
Making a complete circle,
360 degrees, in 24 hours,
the star trail arcs cover 15 degrees each hour
or 7.5 degrees in thirty minutes.
Foreground lighting is courtesy of September 23rd's first quarter
moonlight.
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.
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star trail - sledy zvezd
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