Absolutely beautiful!Webb Telescope Captures Clearest Neptune’s Rings | NASA | NTDTV Online

Beijing time:2022-09-24 12:23

[NTDTV, Beijing time, September 23, 2022]NASA (NASA) recently released the first image captured by the James Webb Space TelescopeNeptune(Neptune) image, capturing the mostclearsights, most notably of Neptune in clearhalo。

according toNASANASA’s Voyager 2 spacecraft flew by in 1989, according to the website NeptuneSince becoming the first spacecraft to observe Neptune, Neptune’s halo It has never been fully detected. In the images captured by the Webb Space Telescope this time, Neptune’s narrow ring is the most striking bright spot.

Scientists first discovered Neptune in 1846. Neptune is the most distant planet from the sun in the solar system. The distance from the sun is 30 times the distance between the earth and the sun. It is so far away that the sunlight is very weak. When the sun of Neptune is in the middle, it is like a hazy twilight on the earth.

“It’s been thirty years since we last saw these faintly dusty rings, and this is the first time we’ve seen them in the infrared,” said Heidi Hammel, a Neptune system expert and scientist with the Webb Space Telescope. see them.”

Neptune appears as a dreamy pearly white as captured by the Webb Space Telescope’s Near Infrared Camera (NIRCam). Previous images of Neptune in visible light by the Hubble Space Telescope showed a typical blue appearance.

Hubble’s image of Neptune in visible light is blue. (NASA)

Neptune is classified as an ice giant due to the chemical composition of its interior. Neptune has a total of 14 known moons, seven of which were captured by the Webb Space Telescope. As you can see from the picture, the particularly bright spot in the upper left corner is Triton, the largest moon of Neptune. Because Triton’s surface is covered in frozen nitrogen, with an average reflectivity of 70 percent, it looks extra bright to telescopes, like a bright star.

The bright spot in the upper left corner of the image is Neptune’s largest moon, Triton. (NASA, ESA, CSA, STScI)

In the new images of Neptune released this time, in addition to severalclearIn addition to the narrow planetary rings, fainter dust bands (Dust bands) were also photographed.

(Reporter Ji Weizhen comprehensive report/responsible editor: Cheng Yiren)

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