Massive rogue planet found lurking outside our solar system

Artist's conception of SIMP J01365663+0933473 an object with 12.7 times the mass of Jupiter but a magnetic field 200 times more powerful than Jupiter's. This object is 20 light-years from Earth. Credit Caltech  Chuck Carter NRAO  AUI  NSF

The curious thing about this planet is not just its huge size but also the fact it doesn't appear to orbit any star.

The planet is only around 20 light years from Earth, but it's not really doing much besides relaxing in the vastness of space.

The planet, which is 12 times as large as Jupiter, sits around 20 light years away from Earth. Brown dwarf planets are sometimes called "failed stars" because they're almost large enough for fusion to begin taking place in their core, but that's not even the most unique thing about this particular planet. Now the array has revealed a planetary-mass object more than a dozen times bigger than Jupiter with a mysterious auroral glow.

The new discovery, made with the National Science Foundation's Karl G. Jansky Very Large Array telescopes in New Mexico, marks the first radio observations of a planetary-mass object beyond our solar system. In terms of physical traits, it's slightly bigger than Jupiter, the largest planet of our stellar neighborhood, but weighs 12 times more than the gas-giant.

However, the supermassive exoplanet or brown dwarf possesses a significant magnetic field by 200 times more potent than Jupiter and has a surface temperature of approximately 825 degrees Celsius.

While we now have limited visibility of celestial objects situated outside our solar system, new advanced telescopes are in making, and they will allow us to further analyze and observe space phenomena.

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It was once thought that no such object could exist and the first failed star was not discovered until 1995. That's why they had problems in establishing its nature, oscillating between calling it a planet or a "failed" star, as brown dwarfs are called.

In addition to providing the first radio detection of the object's magnetic field, VLA also provided the field's first measurement.

This finding could help to better understand the magnetic processes of stars and planets, Kao believes.

Auroras on Earth are created when charged particles from the Sun interact with Earth's magnetic field. On Earth, auroras are generated by interactions between its magnetic field and solar winds.

At the same time, the team from Caltech, which originally registered the radio emission in 2016, I watched it again during the new study, at much higher RF frequencies, and confirmed that the magnetic field of the object was even stronger than originally thought.

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