Apollo 16 Mission image - View of Station 1 and Sample 353 Rock,368 Soil Trench

A CLOSER LOOK

AS16-114-18412 (16-27 April 1972) --- The gnomon and color patch, one of the Apollo Lunar Hand Tools (ALHT), is deployed atop a lunar rock, in this photograph taken by one of the Apollo 16 astronauts during their lunar surface extravehicular activity (EVA) at the Descartes landing site. The gnomon is used as a photographic reference to establish local vertical sun angle, scale, and lunar color. The color patch, mounted on one of the legs of the tripod, provides a larger target for accurately determining colors in color photography. A portion of Flag Crater can be seen in the background. While astronauts John W. Young, commander; and Charles M. Duke Jr., lunar module pilot; descended in the Apollo 16 Lunar Module (LM) "Orion" to explore the Descartes highlands landing site on the moon, astr

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