What is the name & location of the 10th planet in our solar system?

Question

I know a 10th planet was found, and my son wants to know what name it has been given and where it is, in relation to the other planets.

Answer 1

"Xena" is the nickname Mike Brown's group at Cal Tech uses. Officially it is called, "2003 UB 313". He's submitted his suggested name to the International Astronomical Union (IAU) and it is in committee whether it is a planet or not. Naming conventions vary for planets versus KBOs (Kuiper Belt Objects) so they have to decide that first. He is not allowed to tell what his suggested name is, but the previous objects he has named show a sensitive or an appreciation of Native American cultures. If it is a planet, it has to be named for an underworld diety (like Pluto and Neptune) and he's picked one from a cold-climate culture.

And when they found "Xena" had a moon? Well, of course, "Gabrielle" (nickname only).

Location? Why past Pluto. "It is almost 10 billion miles from the sun and more than 3 times more distant than the next closest planet, Pluto and takes more than twice as long to orbit the sun as Pluto." Its orbit is tilted 44 degrees to the plane of the other planets - one of many reasons it wasn't found until recently. People had been looking for planets where they'd found other planets and Xena is way further "up" off the disk. Mike's group continues in their process of surveying the whole sky for plantery objects.

Answer 2

There are several "10th planets" that have been discovered. Most are so small that they are not really considered planets - even to the point that some don't consider Pluto a planet any more, only one of hundreds or thousands of "Kuiper Belt Objects"

Anyways, the links below are for articles on several recently discovered objects that are far enough away to be "10th planets", and can supply a good start for a school report or project.

Answer 3

I think name of 10th planet is sedna which is near Kuiper belt which have icy rock also known as "Comets". Scientist are not still sure about it if it is planet or kuiper belt object.

Saksham Varshney

Answer 4

The Planet X hypothesis, first put forth by Percival Lowell in the late 19th century, stated that there was a fifth gas giant beyond the orbit of Neptune, providing the most common basis for the existence of a tenth planet. The X stands for unknown, rather than the Roman numeral for 10 — when Lowell postulated Planet X, the known planets totaled eight. Planet X was intended to explain perceived anomalies in the orbits of the outer planets. More accurate measurements taken by space probes such as Voyager 2 caused the anomalies to vanish without the need for an extra planet, and the hypothesis was discredited in the 1990s.

With the discovery of the Kuiper belt, the astronomical community began instead to increasingly expect the status of tenth planet would most likely be awarded, if ever, to some other Pluto-like object. The newly-discovered TNO 2003 UB313 is the most popular candidate for status as the tenth planet. Whether it is elevated to this status will depend largely on clarifications to the definition of the term "planet" presently being undertaken by the International Astronomical Union (IAU).

Sedna and Quaoar
Two sizable TNO discoveries in the early 2000s prompted media usage of the term "tenth planet," although there has not been tremendous appetite for their elevation to planethood in the scientific community. 50000 Quaoar was discovered in 2002 by California Institute of Technology scientists. Although significantly smaller than Pluto, Quaoar was the next-largest TNO by a considerable margin at the time of its discovery.

Another object, 90377 Sedna, was discovered in 2004, at the time the most distant known object in the solar system. It is speculated to be an inner member of the Oort cloud, which is a distant reservoir of comets created when most of the original population of the Kuiper belt was scattered by the outer planets early in the history of the solar system. Sedna is believed to be intermediate in size between Pluto and Quaoar.

The Kuiper Belt object designated 2003 UB313 was discovered in early 2005 from imagery dating to 2003 [1]. Its size has been inferred at 2398 km, which is 4.81% larger than Pluto, after Hubble Space Telescope was directed at the planet in 2006. [2] Because 2003 UB313 is too far away to measure the size directly this estimate is base on how much light it reflects to Earth and how much light it absorbs to keep it warm. Many media outlets have reported that 2003 UB313 is now the tenth planet in the solar system, and this classification has been backed by NASA [3]. However, the IAU has now weighed in on the issue to try to define exactly what consitutes a planet.

One of its discoverers noted that although it is in an eccentric and highly inclined (44°) orbit, any definition of "planet" that includes Pluto should also include this new object [4]. Another issue is that the object is not alone, but orbits in the Kuiper Belt along with Pluto and at least 700 other objects. The status of the new object remains officially unclear and Pluto's status may be in jeopardy. Deciding just what constitutes a planet has been an ongoing problem for astronomers, and 2003 UB313 is expected to restart this debate [5].

Originally nicknamed Xena after the lead character in the TV series Xena: Warrior Princess, its moon is nicknamed Gabrielle after Xena's sidekick in the series. However, "Xena" won't be the object's final approved name, because it is a fictional TV character that does not exist in Greek or Roman Mythology.[citation needed]

Persephone is the most frequently-suggested name for a tenth planet. The major planets are, by tradition, named after Greco-Roman gods; in Greco-Roman mythology Roman Pluto corresponds to Greek Hades, and Persephone is Hades' wife, held in the darkness of the underworld, hence hers is thought an appropriate name for the 10th planet.

The name was previously used for the asteroid 399 Persephone, discovered in 1899 (before the planet Pluto, which was found in 1930); since the International Astronomical Union (IAU) Committee on Small Body Nomenclature, which is charged with naming minor planets, has a policy against names that are too similar, it is unlikely that any Trans-Neptunian Objects (TNOs) will be named "Persephone". If the IAU resolves the dilemma of defining what is and is not a planet and determines that the new TNO 2003 UB313 is a major planet, this same policy will not strictly apply; in any case, the discoverers of 2003 UB313 have proposed a name from "another tradition".

An alternate proposal would use Proserpina, wife of Pluto, the Roman name for Persephone; but 26 Proserpina received that name in 1853, presenting the same nomenclature policy problems as "Persephone". However, several asteroids share names with the moons of the outer planets. The use of the name Proserpina would be consistent with the tradition of naming major planets after Roman (Latin) gods, rather than Greek ones, although there are several other Roman gods for which solar system bodies have not been named.

The mothers of Persephone, Demeter, and of Proserpina, Ceres, have been used as names of asteroids: 1 Ceres and 1108 Demeter respectively. (Demeter was also briefly used as an unofficial name for the moon of Jupiter now called Lysithea). On the other hand Hades has not been used as a name for a body in the Solar System (except, briefly, as an unofficial name for the Jovian moon now known as Sinope). See Eleusinian Mysteries for details of the relationship between these three deities from Greek and Roman mythology. It is a historical curiosity that in the seventeenth century, Ceres and Proserpina were sometimes used as astronomical names for the Earth and Moon, respectively.

Answer 5

The image voltaic device revolves around the centre of our galaxy. It does not rotate - each and each planet revolves around the sunlight in its very own orbit, however the image voltaic device itself as an entire isn't rotating. Our galaxy is likewise in action, revolving around a common centre of gravity with Andromeda. And the completed interior of reach team is shifting in the direction of the Norma Cluster.

Answer 6

Everything you ever wanted to know about 2003 UB 313 and weren't afraid to ask: http://en.wikipedia.org/wiki/2003_UB313

Other potential planets, pending classification, are Sedna, http://en.wikipedia.org/wiki/2003_UB313

and Quaoar,
http://en.wikipedia.org/wiki/Quaoar

Answer 7

last time i heard it was called planet x