Explanation: The Sun appears to move on the sky because the Earth rotates. The extreme brightness of the Sun, however, makes it difficult to capture a sun-trail -- the path the Sun traces on the sky. To capture the above picture, a very dark filter covered the camera lens for most of the time, allowing only a trifle of light from the bright Sun to peak through. Just after the Sun had dipped below the horizon but before it was completely dark, the thick filter was removed and the pretty foreground scene was captured. Slight flares appeared when the Sun went behind thin clouds. Star-trails and planet-trails are much easier to image, and a similar Moon trail has also recently been imaged.

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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.

Publikacii s klyuchevymi slovami: sunset - star trail - zahod Solnca - sledy zvezd Publikacii so slovami: sunset - star trail - zahod Solnca - sledy zvezd
Sm. takzhe: Kosmos v otrazheniyah Zvezdnye zavitki Polyarnaya zvezda i sled komety ZTF Sledy zvezd i molnii nad Pireneyami Severnoe nebesnoe derevo Korni vo vrashayusheisya planete Dva mira, odno Solnce Vse publikacii na tu zhe temu >>