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The Windmill and the Star Trails
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The Windmill and the Star Trails
Credit & Copyright: Antonio Gonzalez
Explanation: Stars can't turn these old wooden arms, but it does look like they might in this scene from a rotating planet. The well-composed night skyscape was recorded from Garafia, a municipality on the island of La Palma, Canary Islands, planet Earth. The center of the once working windmill, retired since 1953, is lined-up with the north celestial pole, the planet's rotation axis projected on to the northern sky. From a camera fixed to a tripod, the star trails are a reflection of the planet's rotation traced in a digital composite of 39 sequential exposures each 25 seconds long. Brought out by highlighting the final exposure in the sequence, the stars themselves appear at the ends of their short concentric arcs. A faint band of winter's Milky Way and even a diffuse glow from our neighboring Andromeda Galaxy also shine in the night.

<<  Aprel'  >>
Pn Vt Sr Cht Pt Sb Vs
    1 2 3 4 5
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30      
1995   1996   1997
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'
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.

Russkii tekst
Based on Astronomy Picture Of the Day
Publikacii s klyuchevymi slovami: star trail - sledy zvezd
Publikacii so slovami: star trail - sledy zvezd
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