Moon in Inverted Colors

Astronomy Picture of the Day · 2022-03-08 · NASA (public domain)

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Moon in Inverted Colors — APOD for 2022-03-08

Which moon is this? It's Earth's moon -- but in inverted colors. Here, the pixel values corresponding to light and dark areas have been translated in reverse, or inverted, producing a false-color representation reminiscent of a black and white photographic negative . However, this is an inverted color image -- where the muted colors of the moon are real but digitally exaggerated before inversion. Normally bright rays from the large crater Tycho dominate the southern (bottom) features as easily followed dark green lines emanating from the 85-kilometer diameter impact site. Normally dark lunar mare appear light and silvery. The image was acquired in Southend-on-Sea , England , UK . Historically, astronomical images recorded on photographic plates were directly examined on inverted-color negatives because it helped the eye pick out faint details.

Astronomy Picture of the Day for 2022-03-08 — image & explanation courtesy of NASA (public domain), mirrored at Tukuk-OS for reading and search convenience.

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