Discovered 'gas planet' 464 times larger than Earth

NASA's alien world hunter TESS continues to discover two giant planets, where one year is only 1.64 to 3.7 Earth days long.

TESS, whose full name is an Exoplanet Survey Satellite , a "warrior" tasked with finding distant worlds, especially copies of the Earth, has included in its collection two more " world of hell " .

Because, the two planets it has found are hot and harsh worlds, in the form of a gas planet similar to Jupiter of the Solar System but closer to its parent than Mercury.

Sci-News graphic image depicts a giant gas planet of "hot Jupiter" next to the parent star.

Combined with data from a number of ground telescopes, the team led by astronomer Allen Davis from Yale University (USA) outlined the panorama of two strange worlds.

The first planet, called TOI-564b, is similar in size to Jupiter but weighs 1.46 times. This means that, despite being called the "gas planet" and not the rocky planet like our Earth, this object is still 464 times heavier than Earth although its size is only about 11 times larger.

It orbits the star mother TOI-564 , a G-type dwarf that is 7.3 billion years old, located 644 light-years away, with a rotation that takes only 1.65 days.

The second planet, called TOI-905b , is also a hot gas planet about 1.17 times the size of Jupiter but only 0.67 times the mass. Compared to Earth, it is 13 times bigger and 213 times heavier. The planet is one year as long as 3.74 Earth days, with G-type star dwarf G TOI-905, just 3.4 billion years old and 490 light-years from us.

While TOI-905b has a stable movement around the parent star's disk, TOI-264b is an unstable planet, suggesting that its orbit may be affected by another giant planet. lurking in the dark away from the mother star.

The findings will be published in the upcoming issue of the scientific journal Astronomical Journal.

• The planet is "hot as hell", 1 year is equal to 4 days
• The planet absorbs 99% of sunlight