The last time the number of officially recognized planets in the Solar system changed 11 years ago when the international astronomical Union "demoted" ninth planet Pluto to dwarf planet. In January 2016, the world got the news that at a great distance from the Sun is 700 times farther than the orbit of the Earth, — there may be the ninth planet, which pretends to be gravitational influence on the next, already open ice body. "I think the planet actually find in the next two to five years. For this you need knowledge of the orbit and enough observing time on the telescopes," — said then the author of the hypothesis Konstantin Batygin "Газете.Ru".
However, allusions to the discovery of the mysterious planet, which the pioneers may well be awarded the Nobel prize, yet, despite participation in her search thousands of Amateur astronomers who view the numerous photographs of the sky, and the promise to participate in choosing the name for the planet.
The intriguing sounds of the statement made recently by astronomers Kathryn Volk and Renu Malhorta from the University of Arizona, that much closer to the Sun can be another tenth planet.
The authors of an article accepted for publication in the journal Astronomical Journal, showed that the invisible mass controls the slope of the orbits of many Kuiper belt objects. This is the area that starts beyond the orbit of Neptune (30 astronomical units), which are small icy bodies left over after the formation of the Solar system, extending hundreds of astronomical units.
Most of the orbits of the known Kuiper belt objects lie in the plane of the Solar system, while the most remote of the body is rejected from it, found the Wolf and Malhotra.
Why is this planet still isn't open? According to Wolf, due to the fact that astronomers are still not surveyed the entire sky to search for deleted objects in the Solar system. A mysterious planet is found in the galactic plane which is densely dotted with stars and therefore less studied in the course of such searches.
Their hopes with the opening of the "tenth" planet astronomers associated with the launch of a survey telescope Large Synoptic Survey Telescope (LSST), scheduled for 2021. With it, astronomers hope to increase the number of known Kuiper belt objects from the current 2 thousand to 40 thousand
These planets are in the category of "Dwarf planets" and not actually regarded as "True" planets like the ones with a greater gravity and size.
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