1. Four ‘hot Jupiter’ exoplanets discovered

Four ‘hot Jupiter’ exoplanets discovered

Scientists have discovered four new 'hot Jupiter' extrasolar planets orbiting dwarf stars. Using telescopes of the Hungarian-made Automated Telescope Network-South (HATSouth) Exoplanet Survey, the team observed four G-type dwarf stars known as HATS-50, HATS-51, HATS-52 and HATS-53.

By: | Berlin | Published: January 1, 2018 1:37 PM
jupiter exoplanets, solar systems, new planets, extrasolar planets, dwarf stars, telescopes, hungarian made survey, solar planets survey, NASA, science The system is located some 2,300 light years away from the Earth. With a radius of about 1.41 Jupiter radii, HATS-51b is the largest exoworld among the four newly found extrasolar worlds. (Representational Image: CAUP)

Scientists have discovered four new ‘hot Jupiter’ extrasolar planets orbiting dwarf stars. Using telescopes of the Hungarian-made Automated Telescope Network-South (HATSouth) Exoplanet Survey, the team observed four G-type dwarf stars known as HATS-50, HATS-51, HATS-52 and HATS-53. “We report the discovery of four close-in transiting exoplanets (HATS-50b through HATS-53b), discovered using the HATSouth three-continent network of homogeneous and automated telescopes,” researchers led by Thomas Henning of the Max Planck Institute for Astronomy in Germany wrote in the journal arXiv.org. All the four planets belong to the class of exoplanets known as ‘hot Jupiters.’ Objects of this type are similar in characteristics to Jupiter, with orbital periods of less than 10 days, ‘Phys.org’ reported. They have high surface temperatures, as they orbit their parent stars very closely. HATS-50b is the smallest and least massive alien world of all of the newly discovered exoplanets.

It has a radius of about 1.13 Jupiter radii and a mass of about 0.39 Jupiter radii. The system is located some 2,300 light years away from the Earth. With a radius of about 1.41 Jupiter radii, HATS-51b is the largest exoworld among the four newly found extrasolar worlds. It has an orbital period of 3.35 days, and is located about 1,560 light years away.

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