NASA. BIG FORMAT. Fantastic photograph that is at the time - Lot 272

Lot 272
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Estimation :
600 - 800 EUR
NASA. BIG FORMAT. Fantastic photograph that is at the time - Lot 272
NASA. BIG FORMAT. Fantastic photograph that is at the time it was taken the highest resolution image of the sun's surface ever taken, at 789 nanometers (nm). Features as small as 30 km (18 miles) are observable for the first time. The image shows a turbulent pattern of solar plasma, a superheated gas. The cellular structures, each the size of Texas (about 700,000 km2), are a signature of dynamic activity of heat from the sun's interior to its surface. The solar material that rises in the bright centers of the "cells" then sinks, becoming darker, less hot material through convection. The smaller, brighter areas (intercells) with the darker areas are indications of magnetic fields, supposedly channeling the energy that becomes the outer layers of the solar atmosphere, i.e. the corona.Period chromogenic print. Numbering in the margin on the front. Legend on the back label. 60,9 X 60,9CM with margins.
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