Astronomers have discovered a new ‘hot world’ that revolves around its star. It completes one round of the star in just eight hours. This planet is also special because it is one of the lightest planets ever discovered outside the Solar System. This exoplanet is located at a distance of 31 light-years from the Sun and has been named GJ 367b. This is an example of an ultra-short period planet.
These smaller and denser planets orbit their stars very closely and have a period of less than 24 hours a year. This exoplanet is so close to its star GJ 376 that it takes in 500 times more radiation than Earth and the Sun. GJ 367b is in a ‘tidally locked’ state for its star, which means that only one side of the planet is visible to its star.
Solid core made of iron and nickel
The result is that the planet has a temperature of 2700 °F (1482 °C) during the day. Due to these extreme temperatures, the exoplanet is believed to have lost its atmosphere some time ago. It is closer to Earth than other ultra-short-period planets. Astronomers have discovered that the solid core of GJ 367b is composed of iron and nickel. This core, similar to the core of the planet Mercury, extends into about 90 percent of the planet’s interior.
Exoplanet discovered with the help of NASA’s TESS
The team discovered GJ 367b with the help of NASA’s Transiting Exoplanet Survey Satellite (TESS), which identifies the exoplanet. Recently, scientists discovered an exoplanet orbiting the star L98-59. This exoplanet is completely filled with water, due to which the possibility of life on it has increased manifold. According to the BBC’s Sky at Night magazine, this planet is one of three planets discovered by the Transiting Exoplanet Survey Satellite (TESS) in 2019.