New Planets Discovered Near Solar System

New Planets Discovered Near Solar System

It is a red dwarf star which is typically cooler than most such as Earth's yellow dwarf star, the sun. He added that the red dwarf systems are presently one of the main subjects of investigation and it will be an exciting prospect for future research to find more exoplanets that can sustain life.

As with the original Kepler mission, K2 discovers planets by measuring the tiny decrease in a star's brightness caused by a planet passing in front of the star during its orbit. Also, they used observations from Hawaii's Subaru Telescope and Spain's Nordic Optical Telescope. Three super-Earths were found to be orbiting that bright red dwarf, but it was the outermost planet, K2-155d, that stood out as possibly being within K2-155's habitable zone.

The intriguing thing about studying cooler, smaller stars like red dwarfs is that not much research has been done yet into their planetary systems. These stars, known as red dwarfs, are of enormous interest for studies of planetary formation and evolution.

Using the data obtained, researchers concluded that K2-155d may have the ability to have liquid water on its surface.

Nevertheless, scientists will need to conduct further research to determine whether K2-155 is sufficiently large and warm enough to provide necessary conditions for life on the planet.

The new research, which takes the form of two studies undertaken by the Tokyo Institute of Technology's Department of Earth and Planetary Sciences, may have confirmed speculation about why smaller stars don't produce bigger planets. Hirano expresses both excitement and restraint, as he says: "In our simulations, the atmosphere and the composition of the planet were assumed to be Earth-like, and there's no guarantee that this is the case".

Hirano further commented on the finding that planets that orbit red dwarfs have a similar radius gap to planets orbiting solar-type stars, saying that his team's discovery was "unique", and that astronomers are now trying to figure out the reason behind the radius gap.

"It's important to note that the number of planets around red dwarfs is much smaller than the number around solar-type stars".

That's what makes discoveries of the Earth-like planets exciting because scientists can make guesses as to whether there could be life on those planets one day or not. "The few planets with a radius about three times that of Earth were found orbiting the most metal-rich red dwarfs".

If there is life on K2-155d, it lives by very different natural cycles than Earth's. Furthermore, he speculated that photoevaporation, a phenomenon where electromagnetic radiation strips away a planet's atmosphere, might be the reason why there aren't too many large planets close to their host stars, and that the metallic content of a host star could be linked to the size of the planets that orbit it. "This will greatly facilitate tracking observations, including the study of planetary atmospheres and determination of the precise orbit of planets". Three-quarters of the stars in the galaxy are classified as red dwarfs.

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