New Exoplanet Discovered

A new Jupiter­ size exoplanet with the highest density known till this date and mass 13 times than that of Jupiter, has been discovered by an international team of scientists.

31 May 2023

Context: 

A new Jupiter­ size exoplanet with the highest density known till this date and mass 13 times than that of Jupiter, has been discovered by an international team of scientists.

About the news

  • The newly discovered exoplanet TOI 4603b is one of the most massive and densest giant planets that orbits very close to its host star at a distance less than 1/10th the distance between our Sun and Earth.
  • Discovery led by: Exoplanet Research Group of the Physical Research Laboratory (PRL), Ahmedabad.
  • Instruments used: Indigenously made PRL Advanced Radial Velocity Abu­sky Search spectrograph (PARAS) at the 1.2 m telescope of PRL at its Gurushikhar Observatory in Mt. Abu. 
  • Location: It is found around the star called TOI4603 or HD 245134.

What is an Exoplanet?

  • An exoplanet is any planet beyond our solar system. 
  • Most of them orbit other stars, but free-floating exoplanets, called rogue planets, orbit the galactic centre and are untethered to any star.
  • Exoplanets are made up of elements similar to those of the planets in our solar system, but their mixes of those elements may differ. 
  • Some planets may be dominated by water or ice, while others are dominated by iron or carbon.
  • Exoplanets come in a wide variety of sizes, from gas giants larger than Jupiter to small, rocky planets about as big around as Earth or Mars. 
  • They can be hot enough to boil metal or locked in a deep freeze. 
  • They can orbit their stars so tightly that a “year” lasts only a few days; they can orbit two suns at once. 
  • Some exoplanets are sunless rogues, wandering through the galaxy in permanent darkness.

New Source: The Hindu, NASA

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