It is three times smaller than Pluto, but large enough to join the “dwarf planets” category, the basic author of the study said.
For years, scientists have been in the hunt for the mysterious “ninth planet”. Instead, they believe that they have discovered a new planet dwarf, within the limits of our solar system.
The frozen rocks located in the Kapper area, in addition to Neptune, tend to follow a specific orbit together. Twenty years ago, astronomers expressed the theory that this phenomenon was due to the gravitational attraction of a “ninth planet” that could have a mass of ten times the earth and to this day hidden by all observers.
Researching this mysterious world, whose existence is discussed, three American astronomers argue that they have discovered a new “candidate” for the title of “Dwarf Planet”. The object, named 2017 of201, has a diameter of about 700 kilometers, according to a preliminary study released last week and has not yet been examined by other experts. It is three times smaller than Pluto, but large enough to join the “dwarf planets” category, the co -author of the study, Sihao Cheng, of the Institute of Advanced Studies of New Jersey in the US, told the French Agency.
An OBJECT CALLED 2017 OF2017 IS SHAking Up IDEAS ABOUT OUR SOLAR SYSTEM’S OUTER ZONE:
It follows an extreme, 25,000-year orbit.
It May Be 1 of 100s of Such Bodies Filling A Seemingly Empty Region.
And existence CASTS DOUBT ON SEARCHES FOR PLANET 9.https: //t.co/dhrox94z4K pic.twitter.com/3hqbjktz2j– Corey S. Powell (@Coreyspowell) May 28, 2025
The object is three times the earthy compared to Neptune. However, due to its excessive ellipsoid trajectory, it reaches up to Oort’s cloud, at the extraterrestrial boundaries of our solar system, 1,600 times longer than the Earth’s distance from the sun. On this journey that lasts 25,000 years, the object can be observed from the earth only at 0.5% of the time, that is, about a century.
A New Trans-Neptunian Extreme Dwarf Planet -Bout 700 km of Diameter- Discovered by S.cheng et al: 2017 of201.
Its Apopelion is About 1600 Times that of the Earth’s Orbit and its perihelion is similar to pluto’s orbit. It does one orbit in 25000 Years ️ ️ https://t.co/bcrim5wfbx pic.twitter.com/zkm7ckcyof– xavi bros (@xavi_bros) May 28, 2025
“It is becoming increasingly invisible,” Cheng noted, according to which the discovery suggests that there could be “many hundreds of similar objects in similar orbits” In the Kaper Belt.
Researchers are now asking for more time to turn the James Webb, Habel and jumps to their discovery.
A 23 -year -old amateur observer from California, Sam Dean, had already managed to watch the dwarf planet based on old databases. “Of201 is, to me, perhaps one of the most interesting discoveries in our solar system for a decade,” he told the French Agency.
Pluto was discovered in 1930 and for some time brought the title of “ninth planet” of the solar system. However, in 2006 it was relegated to a planet dwarf because of its small size – it is smaller than our Moon. There are four other “dwarfs” planets in the solar system: Dimitra, Erish, Hawmia and Mackeman.
When the researchers studied the 2017 of2017 orbit, they found that it did not follow the tendency of similar objects in the Kaper Zone. This could call into question the hypothesis of the existence of a ninth planet. Cheng emphasized that for this reason additional data are needed.
This “stunning discovery” and others mean that the original case for the existence of a ninth planet is increasingly moving away, Samantha Lowler, a researcher at the Canadian University of Retzina, was estimated.
🚨 New Dwarf Planet Candidate: 2017 of2017 🚨
~ 700 km wide, now 90.5 au from the Sun.
Orbit: A = 838 au, q = 44.9 au – Deep into the Inner Oort Cloud.
Possible Part of a Hidden Population Totaling ~ 1% of Earth’s Mass.
📄 Paper: https://t.co/zr5cer6MZR#astronomy #dwarfplanet pic.twitter.com/btzdshb2r– Tony Dunn (@tony873004) May 22, 2025
“We live in a time when big telescopes can almost see the limits of space” But “our backyard” remains a mystery, noted Cheng, who hopes to get some answers thanks to the Vera Rubin Observatory, who will work in Chile this year.
Source :Skai
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