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Planet Nine full detail | Information on Planet Nine | spacexstn |

 In the outer region of the Solar system there is a Planet nine, it is a hypothetical or fictional planet.. Its gravitational effect may explain the unusual clustering of orbit for a group of extreme trans-Neptunian objects ( ETNOs ), bodies beyond Neptune that orbit the Sun at 250 times grater distance than  Earth. 

The extreme Trans-Neptunian objects ( ETNOs ) are closest to the Sun in a region, and their orbits are tilted in a similar way. These impossible alignments suggest that an undiscovered planet can revolve or orbit the objects of the farthest solar system

However, some astronomer do not believe that imaginary Planet exist at all, based on information and detailed observation and studies.

Based on the earlier ideas, this imaginary super - Earth sized planet would have been estimated at five to ten times larger than our Planet , and a longer orbit 400 to 800 times farther than Earth from the Sun. 

Konstantin Batygin and Michael E. Brown suggested that planet Nine may be the origin of a massive planet that was ejected from its original orbit by Jupiter during the origin of the solar system. 

Other proposed that the planet was once held or captured by another Stars located o a rogue planet, or that it formed on a distant orbit and was pulled into an eccentric orbit by a passing Star.

Till now, August 2020, none of planet Nine's comment were announced. While sky surveys such as the wide-field infrared survey explorer ( WISE ) and pan STARRS did not detect planet Nine, they have not ruled out the existence of a Neptune - diameter object in the outer solar system. The ability of these previous skies to locate the planet Nine depends on its location and characteristics.

Further surveys of the remaining areas are underway  using NEOWISE and 8 meter Subaru telescopes. Until the planet Nine is observed, its existence is purely adjective. Several alternative hypotheses have been proposed to explain observed groups of TNOs.

Planet Nine

AGE OF PLANET NINE

Brown thinks that if planet Nine really exist, its mass is 4.6 billion year, enough to clean the orbit of a large bodies at the age of the solar system, and that its gravity dominates the outer edge of the solar system, which makes it enough to make a planet according to current definition.

RADIUS OF PLANET NINE

The radius of planet Nine is from 13,000 to 26,000 kilometers ( approximately 2 to 4 times the radius of Planet Earth ) and a mass of 6 x 10 to the power of 25 kg, which means that the mass of Planet Nine is 10 times more than Earth. It is estimated that the Planet Nine may be a rock and ice giant. Its apparent visual magnitude should be approximately 22-24.

HOW COLD IS PLANET NINE

The temperature will be minus 375 degrees Fahrenheit ( minus 226 degrees Celcius ). The imagination that it is a little or a smaller version of the ice giants Uranus and Neptune, hydrogen and helium dominate their environments, the pair calculated that the 10-Earth-mass planet Nine would be about 3.7 times wider than our planet Earth.

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