August 17, 2022

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NASA discovers new exoplanets the size of Jupiter

NASA discovers new exoplanets the size of Jupiter

Using the Transiting Exoplanet Survey Telescope (TESS), NASA has discovered two new exoplanets. The alien worlds, designated TOI-5152 b and TOI-5153 b, are similar in diameter to Jupiter, although their mass is three times greater.

he-goat It is one of NASA’s most exploited space telescopes, precisely designed to search for exoplanets by transit. It is the successor to the Kepler telescope and has been in operation since 2018. TESS is currently scanning nearly 200,000 of the brightest stars in search of alien worlds. To date, more than 5,700 candidate planets have been identified, of which 227 have been confirmed.

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Two more are added to the set of discovered objects. A team of astronomers led by Dr Solen-Ulmer Moll of the University of Geneva has reported the light curves of the two stars TOI-5152 and TOI-5153 around which transit signals were detected.

In a work published on a prepress server arXiv We read:

Detection photometry was collected using the TESS space mission, and follow-up observations were made from the ground with the NGTS photometry facility and CORALIE, FEROS, CHIRON, HARPS and TRES high-resolution spectrophotometers.

new planets

TOI-5152 b has a radius of about 1.07 the radius of Jupiter and is three times larger than the largest planet in the solar system. It orbits its host star every 54.19 days, at a distance of about 0.31 astronomical units, and is a G1 star roughly twice the size of the Sun, about 1,200 light-years from Earth. It is 1.4-6.8 billion years old.

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TOI-5153 b, in turn, has about 1.06 radius of Jupiter and a mass of 3.26 Jupiter. The orbital period of this exoplanet has been measured for 20.33 days, the distance between it and the host is about 0.16 AU, and the host star is of spectral type F8, which is about 40% larger than the Sun and at least 5.4 billion years old. The distance to this planetary system is about 1270 light years.

Thus, TOI-5152 b and TOI-5153 b are warm and vast space worlds the size of Jupiter. Both planets are rich in minerals, and their content of heavy elements corresponds to the relationship of the mineral mass of gas giants. In many ways, they are perfect observational objects for astronomers.