File:New Webb Images Capture Rare View of Neptune’s Rings (Labeled).png

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描述	English: Hey Neptune. Did you ring? 👋 Webb’s latest image is the clearest look at Neptune's rings in 30+ years, and our first time seeing them in infrared light. Take in Webb's ghostly, ethereal views of the planet and its dust bands, rings and moons. (Some of these rings have not been detected since Voyager 2 flew by in 1989!) What’s that in the upper left? That’s no star. It’s Neptune’s large, unusual moon, Triton! Because Triton is covered in frozen, condensed nitrogen, it reflects 70% of the sunlight that hits it — making it appear very bright to Webb. 6 of Neptune’s other moons can also be seen as tiny dots surrounding Neptune and its rings. In visible light, Neptune appears blue due to small amounts of methane gas in its atmosphere. Here, Webb’s NIRCam instrument observed Neptune at near-infrared wavelengths, so Neptune doesn’t look so blue! Read more about Webb’s views of Neptune: www.nasa.gov/feature/goddard/2022/new-webb-image-captures... Image description: Webb’s view of Neptune and its moons. Here, a large, prominent 8-pointed object, colored in teal, is labeled in small white text as Neptune’s moon Triton on the upper left. A small, pearl-like Neptune is below and to the right of Triton. Neptune’s rings are a standout feature. Surrounding Neptune and its rings are 6 other moons, seen as tiny dots, and labeled (clockwise, starting from 3 o’clock): Despina, Proteus, Larissa, Thalassa, Naiad, Galatea. The background is dark and sprinkled with a few other distant objects. Credits: NASA, ESA, CSA, STScI
日期	2022年9月21號
來源	https://www.flickr.com/photos/nasawebbtelescope/52374271658/
作者	NASA's James Webb Space Telescope
Other versions	JPEG version TIFF version

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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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This image was originally posted to Flickr by James Webb Space Telescope at https://flickr.com/photos/50785054@N03/52374271658. It was reviewed on 2022年9月21號 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

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現時	2022年9月21號 (三) 14:51		1,059 × 1,059（1.71 MB）	Erick Soares3	Uploaded a work by NASA's James Webb Space Telescope from https://www.flickr.com/photos/nasawebbtelescope/52374271658/ with UploadWizard

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作者	Space Telescope Science Institute Office of Public Outreach
圖名	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 (EuropeanSpace Agency) and the Canadian Space Agency.
原創日期時間	2022年9月21號 (禮拜三)
色彩空間	sRGB
Exif版本	2.31
影像闊度	1,059 px
影像高度	1,059 px
每部位位元數	8 8 8
高	1,059 px
闊	1,059 px
像素構成	RGB
部位數	3
橫解像度	71.98 dpi
直解像度	71.98 dpi
聯繫信息	outreach@stsci.edu http://stsci.edu 3700 San Martin Drive Baltimore, MD, 21218 USA 410-338-4444
關鍵字	Neptune
短標題	New Webb Images Capture Rare View of Neptune’s Rings
Credit/Provider	NASA, ESA, CSA, STScI; Image Processing: STScI/J. DePasquale
來源	STScI
Date metadata was last modified	2022年9月7號 (三) 12:37
Unique ID of original document	BC961BB3FF494D26FFF6C016DF568451
Usage terms	http://stsci.edu/copyright/
檔案更動日期時間	2022年9月7號 (三) 12:13

File:New Webb Images Capture Rare View of Neptune’s Rings (Labeled).png

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