Mars Photographs Found in Archives

This is a news story, published by Drew Ex Machina, that relates primarily to Meridiani Planum news.

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Famous Mars Image

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Astronomical Photographs

Drew Ex Machina

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The Best Images of Mars – 1909

Summary

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89% Informative

E.E. Barnard ( 1857-1923 ) took a series of photographs of Mars on September 24 and 28 through a yellow filter (to reduce the effects of atmospheric scattering and improve surface feature visibility) using Cramer Instantaneous Isochromatic plates.

These comparatively sensitive photographic plates in combination with the Yerkes 40-inch telescope allowed Mars to be recorded with exposure times of just two or three seconds .

Each column of images in the slide seen below were taken within a few seconds of each other.

Centered on the triangular-shaped classical feature called Syrtis Major.

Today this is known as Meridiani Planum and would be the landing site of NASA ’s long-lived Opportunity rover 94 years later .

Although these images were the best photographs of Mars of the time, atmospheric seeing limited their effective resolution to something on the order of an arc second or about 300 to 400 kilometers on the surface of Mars .

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