Emissions from the Cattle Three Hydrogen Flavari (h3+It was used to study global interactions on the scale between Jupiter, Saturn and Uranus with the surrounding space environments for more than 30 years, and revealed the processes that make up the European. However, despite repeated attempts, and unlike models that expect to exist, this ion has proven far -reaching in Neptune. Now, using notes from the Webb NASA/ESA/CSA JAMES Webb spacecraft, the Cather for the Hydrogen Categon Discover in Neptune as well as the Southern infrared southern Aurorae.
This composite image, made with data from NASA/Esa Hubble and NASA/ESA/CSA JAMES Webb, shows an uurian activity (heavenly spots) on Neptune. Credit Image: Nasa / Esa / CSA / STCI / Heidi Hammel, Aura / Henrik Melin, Northomia University / Lee Fletcher, University of Leicester / Stephanie Milam, Nasa-GSFC.
“In the past, astronomers have seen hints in boring of Irish activity on Neptune.”
“However, the photography and the confirmation of Ura on Neptune have long been evading despite the successful discoveries on Jupiter, Saturn, and Uranus.”
“Neptune was the missing piece of the mystery when it came to detecting the twilight on the giant planets of our solar system.”
In the study, the authors analyzed the data obtained by Web spectrum near infrared (Nirspec) in June 2023.
In addition to the image of the planet, astronomers got a spectrum to describe the composition and measure the temperature of the upper atmosphere of the planet (ionosphere).
They found a very prominent emission line indicating the presence of tri hydrogen.
Astronomers said: “In the Neptune web pictures, Aurora appears as a glowing array as a celestial spot,” said astronomers.
“The Irish activity that was seen on Neptune is significantly differs from what we are used to seeing here on Earth, or even Jupiter or Saturn.”
“Instead of limited to the northern and southern columns of the planet, Aurorae of Nevtune is located in the geographical bars of the geographical planet-thought about the whereabouts of South America on Earth.”
“This is due to the strange nature of the magnetic field in Neptune, which was originally discovered by NASA Voyager 2 in 1989, which tends to 47 degrees of the planet’s rotation axis.”
“Since Ural’s activity depends on the magnetic fields converging with the planet’s atmosphere, Ura Neptune is far from the columns of rotation.”
“The pioneering disclosure of the Neptune’s Aurorae will help us understand how the magnetic field in Neptune interacts with the particles that flow from the sun to the distant rolls of our solar system, which is a completely new window in the ice air sciences.”
The researchers also managed to measure the temperature of the top of the Neptune Joe for the first time since Voyager 2 of Flype.
Their results indicate the reason for the survival of Uruor from Neptune, hidden from astronomers for a long time: the upper atmosphere in Neptune may cool in several degrees.
Over the years, astronomers expected Aurorae from Neptune based on the temperature recorded by Voyageer 2.
The scientists said: “A largely cold temperature would lead to a lot of urban.”
“This cold temperature is likely to be the reason why Aurorae of Nevtune has been uncomfortable for a long time.”
“Dramatic cooling also indicates that this area of ​​the air can significantly change, although the planet is more than 30 times from the sun compared to the Earth.”
the results Today appears in the magazine Nature astronomy.
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H Milin And others. H3+ The infrared Auroraa in Neptune with JWST. Nat AstronIt was published on the Internet on March 26, 2025; DOI: 10.1038/S41550-025-02507-9
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