Explanation: Stars trail and the Sun rises in this night and day composite panorama made on March 19. The view looks toward the eastern horizon from La Nava de Santiago, Spain. To create it, a continuous series of digital frames was recorded for about two hours and combined to trace the concentric motion of the stars through the night sky. A reflection of the Earth's rotation, star trails curve around the north celestial pole toward upper left and the south celestial pole toward the lower right. Of course on that day the Sun was near the celestial equator, a diagonal straight line in the wide-angle projection. A dense dimming filter was used to capture the Sun's image every two minutes. Superimposed on the star trails it rose due east in the morning sky. In the scene, foreground landscape and a local prehistoric monument were illuminated by full moonlight, though. The monument's corridor faces nearly to the east and the equinox sunrise.

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
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NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.

Publikacii s klyuchevymi slovami: equinox - star trail - Ravnodenstvie - sledy zvezd Publikacii so slovami: equinox - star trail - Ravnodenstvie - sledy zvezd
Sm. takzhe: Chikagohendzh: ravnodenstvie v uporyadochennom gorode Teni ot voshodyashego Solnca na nebe Zhivopisnyi zakat v den' ravnodenstviya Analemma posle poludnya Kosmos v otrazheniyah Zvezdnye zavitki Ravnodenstvie i piramida Pernatogo Zmeya Vse publikacii na tu zhe temu >>