ability

altitude

ames research center

arc

atmosphere

background

brightness

center

disk

edge

semitransparent

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P-34705 This false-color photograph of Neptune was made from Voyager 2 images taken through three filters: blue, green, and a filter that passes light at a wavelength that is absorbed by methane gas. Thus, regions that appear white or bright red are those that reflect sunlight before it passes through a large quantity of methane. The image reveals the presence of a ubiquitous haze that covers Neptune in a semitransparent layer. Near the center of the disk, sunlight passes through the haze and deeper into the atmosphere, where some wavelenghths are absorbed by methane gas, causing the center to appear less red. Near the edge of the planet, the haze scatters sunlight at a higher altitude, above most of the methane, causing the bright red edge around the planet. By measuring haze brightness at several wavelengths, scientists are able to estimate the thickness of the haze and its ability to scatter sunlight. The image is among the last of the full-disk photos that Voyager 2 took before beginning its endless journey into interstellar space. ARC-1989-AC89-7036

P-34705 This false-color photograph of Neptune was made from Voyager 2...

P-34705 This false-color photograph of Neptune was made from Voyager 2 images taken through three filters: blue, green, and a filter that passes light at a wavelength that is absorbed by methane gas. Thus, regi... More

A close up of a bunch of leaves. Background leaves semitransparent, backgrounds textures.

A close up of a bunch of leaves. Background leaves semitransparent, ba...

The leaves of the tree are golden / A close up of a bunch of leaves / Public domain stock illustration.