2023-06-27 11:16:04
[SAPOD]Today’s “space image”. We introduce characteristic images introduced by sorae in the past, attractive images released by space agencies around the world, and images sent by space astronomy fans and experts. (There is a link to the original article at the end of the article) (Source: sorae)SourceImage Credit: NASA, ESA, CSA, STScI; IMAGE PROCESSING: Joseph DePasquale (STScI)sorae – Clear image of Neptune’s rings James Webb Space Telescope This is an image of “Neptune captured by the James Webb Space Telescope” introduced by sorae in the September 24, 2022 article. A near-infrared camera “NIRCam” was used for photography. The reason why it has a different color than the “blue Neptune” that we usually see is that the Webb Space Telescope mainly observes at infrared wavelengths. The human eye cannot see infrared light, so this image is colored red, green, orange, and blue according to the four different filters used during its acquisition.[▲ Neptune and its seven moons (with English annotations) taken with the James Webb Space Telescope’s near-infrared camera “NIRCam” (Credit: NASA, ESA, CSA, STScI; IMAGE PROCESSING: Joseph DePasquale (STScI)) ]This is also an annotated wide-area image around Neptune. This image shows 7 of Neptune’s 14 moons, which is half of them. (From top to bottom: Triton, Galatea, Naiad, Thalassa, Despina, Larissa, and Proteus) The brightest star in the upper left is Neptune’s largest moon, Triton. Triton’s surface is covered in condensed nitrogen ice, which reflects an average of 70 percent of the sunlight that hits it. Triton appears much brighter in this image than Neptune, which appears dark because methane strongly absorbs near-infrared light. The original article provides detailed information regarding photographing Neptune and the Webb Space Telescope. Also, as a related, “Difference in color” between Uranus and Neptune. Why is Neptune bluer? Please also see the article. The difference in color between Uranus and Neptune. Why is Neptune bluer? June 6, 2022Uranus and Neptune have a lot in common, including mass, size, and atmospheric composition. However, their appearance (color) is quite different.Seen in visible light, Neptune has a rich, deep azure hue, but celestial… Read more
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