2012 Venus Transit in Spectacular Ultra-High Definition
Set into motion on February 11, 2010, the Solar Dynamics Observatory (SDO) stands as a pinnacle of spacecraft engineering, devised with unparalleled sophistication to scrutinize the sun. Over its five-year mission, it delves into the sun's atmosphere, magnetic field, while unraveling the intricate interplay between the sun and Earth's atmospheric chemistry and climate. Boasting imagery of a resolution eightfold superior to high-definition television, SDO generates a staggering terabyte of data daily.
June 5, 2012, marked a momentous occasion as SDO seized visuals of an extraordinary celestial phenomenon—the rare and predictable transit of Venus gliding across the sun's visage. This phenomenon transpires in dual occurrences every eight years, separated by spans of either 105 or 121 years. The prior transit took place in 2004, with the subsequent one not anticipated until 2117.
The captivating videos and images presented here are a synthesis of diverse extreme ultraviolet wavelengths and a fraction of the visible spectrum. The sun takes on varied hues: the reddish sun represents the 304 angstrom ultraviolet, the golden hue denotes 171 angstrom, the magenta tone stands for 1700 angstrom, and the orange tint signifies filtered visible light. The 304 and 171 angstrom perspectives unveil the sun's atmospheric layers, concealed from the naked eye within the visible spectrum.
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