Fichier:Neptune (NIRCam) Labeled.jpg
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Description
DescriptionNeptune (NIRCam) Labeled.jpg |
English: In this version of Webb’s Near-Infrared Camera (NIRCam) image of Neptune, the planet’s visible moons are labeled. Neptune has 14 known satellites, and seven of them are visible in this image.
Triton, the bright spot of light in the upper left of this image, far outshines Neptune because the planet’s atmosphere is darkened by methane absorption at wavelengths captured by Webb. Triton reflects an average of 70 percent of the sunlight that hits it. Triton, which orbits Neptune in a backward orbit, is suspected to have originally been a Kuiper belt object that was gravitationally captured by Neptune. NIRCam was built by a team at the University of Arizona and Lockheed Martin’s Advanced Technology Center. |
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Date | |||||
Source | https://webbtelescope.org/contents/media/images/2022/046/01GCCVN1Q7285741KZV1M4WEC8 | ||||
Auteur |
IMAGE: NASA, ESA, CSA, STScI IMAGE PROCESSING: Joseph DePasquale (STScI) |
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Autres versions |
(the real original is the tif version)
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Conditions d’utilisation
Public domainPublic domainfalsefalse |
This file is in the public domain because it was created by NASA, ESA and CSA. NASA Webb material is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA/CSA is credited as the source of the material. This license does not apply if source material from other organizations is in use. The material was created for NASA by Space Telescope Science Institute under Contract NAS5-03127. Copyright statement at webbtelescope.org. For material created by the European Space Agency on the esawebb.org site, use the {{ESA-Webb}} tag. |
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Date et heure | Vignette | Dimensions | Utilisateur | Commentaire | |
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actuel | 23 septembre 2022 à 23:15 | 1 059 × 1 059 (1,06 Mio) | Habitator terrae | Uploaded a work by IMAGE: NASA, ESA, CSA, STScI IMAGE PROCESSING: Joseph DePasquale (STScI) from https://webbtelescope.org/contents/media/images/2022/046/01GCCVN1Q7285741KZV1M4WEC8 with UploadWizard |
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Orientation | Normale |
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Résolution horizontale | 72 pt/po |
Résolution verticale | 72 pt/po |
Logiciel utilisé | GIMP 2.10.12 |
Date de modification du fichier | 23 septembre 2022 à 23:05 |
Auteur | Space Telescope Science Institute Office of Public Outreach |
Version d’EXIF | 2.31 |
Date et heure de la numérisation | 30 août 2022 à 12:45 |
Commentaires de l’utilisateur | NASA’s James Webb Space Telescope is showing off its capabilities closer to home with its first image of Neptune. Not only has Webb captured the clearest view of this peculiar planet’s rings in more than 30 years, but its cameras are also revealing the ice giant in a whole new light.
Neptune, located 30 times farther from the sun than Earth, orbits in one of the dimmest areas of our solar system. High noon on Neptune would appear as a dim twilight does to us. This planet, characterized as an ice giant due to a hydrogen and helium-rich interior, has fascinated and perplexed researchers since its discovery via mathematics, not eyesight, in 1846. Most striking about Webb’s new image is the crisp view of the planet’s dynamic rings—some of which haven’t been seen at all, let alone with this clarity since the Voyager 2 flyby in 1989. Visible in the outermost ring, Adam’s ring, in this Webb image are clumps of dust called ring arcs. These thicker bands of dust have been observed to split and evolve, and astronomers will use Webb to investigate why and how that process occurs. Webb’s Near-Infrared Camera (NIRCam) captures objects in the near-infrared range from 0.6 to 5 microns. In the context of Neptune and other solar system gas giants, this means, with Webb, we’re able to study deeper into the planet’s turbulent atmosphere to learn more than ever before about circulation patterns, chemical composition, and atmospheric structure. This first image of Neptune reveals several key features of the ice giant’s atmosphere only visible in the infrared. Most prominent in the image are a series of bright patches representing methane-ice clouds. These clouds are high in the atmosphere and reflect the sun’s bright light. Images from other observatories, including the Hubble Space Telescope and the W.M. Keck Observatory, have recorded these rich, moving features over the years. More subtly, a thin line of brightness circling the planet’s equator is a visual signature of the global circulation of rising and falling material that powers Neptune’s winds and storms. At the equator warmer gases descend, glowing more brightly than the surrounding cooler gases. Neptune’s 164-year orbit means its northern pole, at the top of this image, has remained just out of view for astronomers for the most part–until now. Webb picks up an area of heightened brightness at the north pole area, hinting at some sort of atmospheric structure that could be investigated in future studies. A vortex swallowing part of the southern pole is also clearer in Webb’s view, showing signs of an extremely detailed, multi-faceted structure with a clear, continuous band of clouds surrounding it. Also photobombing Webb’s portrait of Neptune is a bright point of light sporting the signature diffraction spikes in many of Webb’s images—not a star, but Neptune’s most unusual moon, Triton. Covered in a frozen sheen of condensed nitrogen, Triton reflects an average 70 percent of the sunlight that hits it. Webb also captured 6 more of Neptune’s 14 known moons as they follow a relatively close orbit around the planet. The James Webb Space Telescope is the world’s premier space science observatory. Webb will solve mysteries in our solar system, look beyond to distant worlds around other stars, and probe the mysterious structures and origins of our universe and our place in it. Webb is an international program led by NASA with its partners, ESA (European Space Agency) and the Canadian Space Agency. |
Espace colorimétrique | Non calibré |
Commentaire de fichier JPEG | NASA’s James Webb Space Telescope is showing off its capabilities closer to home with its first image of Neptune. Not only has Webb captured the clearest view of this peculiar planet’s rings in more than 30 years, but its cameras are also revealing the ice giant in a whole new light.
Neptune, located 30 times farther from the sun than Earth, orbits in one of the dimmest areas of our solar system. High noon on Neptune would appear as a dim twilight does to us. This planet, characterized as an ice giant due to a hydrogen and helium-rich interior, has fascinated and perplexed researchers since its discovery via mathematics, not eyesight, in 1846. Most striking about Webb’s new image is the crisp view of the planet’s dynamic rings—some of which haven’t been seen at all, let alone with this clarity since the Voyager 2 flyby in 1989. Visible in the outermost ring, Adam’s ring, in this Webb image are clumps of dust called ring arcs. These thicker bands of dust have been observed to split and evolve, and astronomers will use Webb to investigate why and how that process occurs. Webb’s Near-Infrared Camera (NIRCam) captures objects in the near-infrared range from 0.6 to 5 microns. In the context of Neptune and other solar system gas giants, this means, with Webb, we’re able to study deeper into the planet’s turbulent atmosphere to learn more than ever before about circulation patterns, chemical composition, and atmospheric structure. This first image of Neptune reveals several key features of the ice giant’s atmosphere only visible in the infrared. Most prominent in the image are a series of bright patches representing methane-ice clouds. These clouds are high in the atmosphere and reflect the sun’s bright light. Images from other observatories, including the Hubble Space Telescope and the W.M. Keck Observatory, have recorded these rich, moving features over the years. More subtly, a thin line of brightness circling the planet’s equator is a visual signature of the global circulation of rising and falling material that powers Neptune’s winds and storms. At the equator warmer gases descend, glowing more brightly than the surrounding cooler gases. Neptune’s 164-year orbit means its northern pole, at the top of this image, has remained just out of view for astronomers for the most part–until now. Webb picks up an area of heightened brightness at the north pole area, hinting at some sort of atmospheric structure that could be investigated in future studies. A vortex swallowing part of the southern pole is also clearer in Webb’s view, showing signs of an extremely detailed, multi-faceted structure with a clear, continuous band of clouds surrounding it. Also photobombing Webb’s portrait of Neptune is a bright point of light sporting the signature diffraction spikes in many of Webb’s images—not a star, but Neptune’s most unusual moon, Triton. Covered in a frozen sheen of condensed nitrogen, Triton reflects an average 70 percent of the sunlight that hits it. Webb also captured 6 more of Neptune’s 14 known moons as they follow a relatively close orbit around the planet. The James Webb Space Telescope is the world’s premier space science observatory. Webb will solve mysteries in our solar system, look beyond to distant worlds around other stars, and probe the mysterious structures and origins of our universe and our place in it. Webb is an international program led by NASA with its partners, ESA (European Space Agency) and the Canadian Space Agency. |