Blog dedicated to the world of space. News on space discoveries, missions, planets

What is Planet 9 in our solar system?

What is Planet 9 in our solar system?

By daniele

Planet 9 is a hypothetical giant planet that may be orbiting the Sun beyond Pluto. Its presence can explain the strange phenomenon in which a handful of small icy bodies in the outer solar system appear to be clustered in similar orbits. All these objects are in the Kuiper Belt, the same region of the solar system, including Pluto. These objects, including the dwarf asteroid Sedona, orbit around the Sun in a long, elliptical orbit.

Planet 9, also known as Planet X, is a huge virtual object with an elliptical orbit far beyond Pluto, and it takes 10,000 to 20,000 years to orbit around the Sun.

What does Planet 9 look like?

If we assume that a planet like this is present, the mass of Planet 9 is one digit (about ten times) larger than that of the Earth, and the perimeter is close to that of an ice planet.

The dominant scenario to explain the position of the planet 9 is that it originated somewhere between the orbits of Jupiter and Neptune and was born like any other gas planet in the solar system.

Planet 9 would have been kicked from one of the two gas plants before the greedy found itself in an icy wilderness.

How big is Planet 9?

According to Batigin and Brown’s models, it is necessary to have an object with about the same mass as Neptune to stretch and tilt the orbits of objects in Sedona and other Kuiper belts. In other words, Planet 9 has about ten times the mass of the Earth. If it is the correct mass, it will be smaller than Neptune or Uranus.

Is Planet 9 a black hole?

A group of astronomers, including Avi Lobe at Harvard, suggested Planet 9 could be a small black hole somewhere in the Oort cloud. If we find out that Planet 9 is a black hole 9, it’s about the size of a grapefruit, but it has a mass five to ten times that of the Earth. 

The definition of black holes is so dense that even light cannot escape its gravity, so the only way to find black holes would be to find the radiation flashes emitted when an unfortunate comet crosses the horizon of the black hole’s event.