The orbit of the most distant objects in the solar system can detect undiscovered planet
NASA / JPL-Caltech i>
Astronomers have discovered a наиболее remote object of the solar system, of all known at this time. It is three times farther from the Sun than Pluto. Dwarf planet has already received the catalog number - V774104. Its diameter is between 500 and 1,000 kilometers, but this option requires clarification.
The study of the planetoid's orbit takes about a year, but now scientists say that the strange orbit V774104 may indicate the presence in the solar system other neizvesno long objects. "We can not explain the orbit of this object with the current set of data about the solar system," - said Scott Sheppard, a spokesman for the team that discovered V774104.
Now this planetoid is located at 15, 4 billion kilometers from the Sun, which is about 103 AU 1 AU - The distance from the Earth to the sun.
While astronomers reflect on what class of objects include V774104. If this planetoid is moving closer to the Sun at a distance less than the current, then it could be considered a more or less conventional cold worlds, whose orbit is due to the gravitational influence of Neptune. But if not dwarf planet approaches the Sun, it is a "relative" of two similar worlds Sedna and 2012, VP113. These two worlds will never converge with the Sun at a distance of less than 50 AU Instead, they removed 1,000 AU from the sun. Thus, they are very elongated orbit. Sheppard calls these planetoids "inner Oort cloud objects" in order to distinguish them from the icy worlds of the Kuiper Belt, located at a distance of 30-50 AU from the sun.
Elongated orbit "inner Oort cloud objects" is interesting in that it can not explain the current set of data about the solar system. Something deformed their orbit. That something can be a very distant giant planet at the outer edge of the solar system. And maybe it echoes the time when she formed our system, being surrounded by other stellar "nursery".