Planet 9 could be hiding in the Legacy Survey of Space and Time (LSST). The LSST is a 10-year astronomical survey that will study the southern sky at the Vera C. Rubin Observatory in Chile. The observatory is named after the astronomer who discovered dark matter, a substance that holds galaxies and stars together. 

Planet 9 is a hypothetical ninth planet that may be orbiting past Neptune, or just past the Kuiper Belt. The Kuiper Belt is a vast region beyond Neptune that contains icy bodies and comets. The primary evidence for Planet 9 is the strange behavior of objects in the Kuiper Belt. 

Some scientists believe that Planet 9 could be 1.5–3 times the size of Earth, and its orbit would be 250–500 astronomical units from the Sun. Others estimate that Planet 9 would be 5–10 Earth-masses in size, and orbit 400–800 au from the Sun

A recently submitted study to The Astronomical Journal continues to search for the elusive Planet Nine (also called Planet X), which is a hypothetical planet that potentially orbits in the outer reaches of the solar system and well beyond the orbit of the dwarf planet, Pluto

Planet 9, also known as Planet X, is a hypothetical planet that may be hiding in the outer region of the Solar System. It’s nicknamed the “ghost planet” because it’s never been directly observed

Some scientists believe Planet 9 could be a rocky super-Earth, or a gaseous mini-Neptune. It could also be an icy planet with a solid core, similar to Uranus or Neptune. 

Planet 9’s gravitational effects could explain the strange clustering of orbits for a group of extreme trans-Neptunian objects (ETNOs). ETNOs are bodies beyond Neptune that orbit the Sun at distances averaging more than 250 times that of the Earth. 

Planet 9 is also thought to be responsible for at least five strange features in the solar system, including the oddly inclined orbits of a few Kuiper Belt objects.

This hypothetical Neptune-sized planet orbits our Sun in a highly elongated orbit far beyond Pluto. The object, which the researchers have nicknamed “Planet Nine,” could have a mass about 10 times that of Earth and orbit about 20 times farther from the Sun on average than Neptune

Planet Nine, also known as Planet X, is a hypothetical planet that may orbit beyond Pluto in the outer reaches of our solar system. 

According to Wikipedia, Planet Nine’s gravitational pull could explain the orbits of extreme trans-Neptunian objects (ETNOs). These objects orbit the sun at distances that are more than 250 times the distance of Earth. 

However, some astronomers believe that the clustering of ETNO orbits is due to observational biases. 

According to NASA, the existence of Planet Nine is only theoretical, and no direct observations of the object have been made. 

The Astronomical Journal is a monthly scientific journal that is published by IOP Publishing and owned by the American Astronomical Society. It is one of the world’s leading astronomy journals.

The main evidence for Planet Nine’s existence is its gravitational pull on other bodies. If the planet exists, its gravity will affect the orbits of other planets. 

Another piece of evidence is the strange behavior of objects in the Kuiper belt. The Kuiper belt is a vast region of the solar system beyond Neptune that contains hundreds of thousands of icy bodies and a trillion or more comets. 

In 2016, researchers proposed the possible existence of Planet Nine, which they estimate to be about 10 times the mass of Earth. They also believe that it orbits the sun between 300 and 1,000 times farther than the orbit of the Earth. 

However, scientists have not been able to detect Planet Nine. It might be a special kind of black hole, or be made entirely of dark matter. 

The connection between MOND and a hypothetical Planet 9 may seem odd, but it emerges from the fact that the primary evidence for this world — that supposedly lurks at the edge of the solar system — is the strange behavior of objects in a distant structure called the Kuiper belt

Planet Nine is hard to find because it’s very far away from the sun, very cold, and very dark. It’s also very faint, making it difficult to spot even with telescopes. 

Planet Nine’s orbit is also distorted, with its farthest reach expected to be twice as far away as its nearest. This means it’s unlikely to be reflecting much light from the sun. 

Astronomers must apply complex calculations to data from a telescope mounted on a volcano in the Atacama Desert to seek its faint heat signature. 

As of November 2022, a search at millimeter wavelengths failed to find any convincing candidates for Planet Nine. A 2022 survey of the solar system’s outer reaches also failed to find the theorized planet. 

Some sky surveys, like Wide-field Infrared Survey Explorer (WISE) and Pan-STARRS, have not ruled out the existence of a Neptune-diameter object in the outer Solar System. However, observations have not yet discovered the source of the gravity from the usual optical, microwave, infrared, or electromagnetic wave spectrums. 

Some speculate that Planet Nine could be a rogue planet core, a small black hole, or even a cluster of dark matter. 

According to NASA, Planet Nine could be about 10 times the mass of Earth and orbit the sun 20 times farther away than Neptune. Some say it could be a smaller version of the ice giants Uranus and Neptune, with a hydrogen and helium atmosphere. If this is the case, a 10-Earth-mass Planet Nine would be about 3.7 times wider than Earth and have an average temperature of minus 375 degrees Fahrenheit. 

Others say Planet Nine could be either a rocky super-Earth or a gaseous mini-Neptune. Some say it could be 5,000 times the mass of Pluto and gravitationally dominate its neighborhood of the solar system

According to a paper, Planet Nine may have up to 20 moons, each up to 62 miles (100 kilometers) across. If it does have moons, they could be the key to revealing Planet Nine’s presence in the Kuiper Belt. 

According to Universe Today, it’s highly likely that Planet Nine will capture moons, since there are a lot of smaller trans-Neptunian objects scattered out in that region. 

The tidal effect can heat up the satellites significantly, which can give sufficient thermal radio flux for observations, even if Planet Nine is a dark object

In Depth

In January 2015, Caltech astronomers Konstantin Batygin and Mike Brown announced new research that provides evidence of a giant planet tracing an unusual, elongated orbit in the outer solar system. The prediction is based on detailed mathematical modeling and computer simulations, not direct observation.

This large object could explain the unique orbits of at least five smaller objects discovered in the distant Kuiper Belt.

“The possibility of a new planet is certainly an exciting one for me as a planetary scientist and for all of us,” said Jim Green, director of NASA’s Planetary Science Division. “This is not, however, the detection or discovery of a new planet. It’s too early to say with certainty there’s a so-called Planet X. What we’re seeing is an early prediction based on modeling from limited observations. It’s the start of a process that could lead to an exciting result.”

Please like subscribe comment your precious thoughts on universe discoveries

Full article source google