Detecting the outer three planets about the size of the Earth

The turns around the two red dwarfs K2-239 and K2-240, discovered by NASA's Kepler spacecraft.

An international team of scientists, led by Professor Javier de Cos from the University of Oviedo and Rafael Rebolo astrophysicist from Spain's Astrofísica de Canarias Institute (IAC) yesterday announced the discovery of two systems. new planet. One of them contains three planets of the same size as Earth, according to Science Daily.

The two new planetary systems were named K2-239 and K2-240 respectively.

The planets were discovered by NASA's Kepler spacecraft, by tracking the obscured light of the host star as the planet passes through the star's bright region. The two new planetary systems were named K2-239 and K2-240 respectively.

In it, K2-239 contains at least three rocky planets of the same size as the Earth. This planetary system is located in the constellation Sextant , about 160 light-years from the Sun. According to the Royal Astronomical Society magazine, three planets each have a radius of 1.1, 1.0 and 1.1 times the Earth radius and spin around the host star in 5.2, 7. , 8 and 10.1 days.

The other planetary system contains two planets twice as large as the Earth, orbiting a red dwarf star K2-240. The team estimated that all extrasolar planets orbiting the two stars K2-239 and K2-240 all have temperatures 10 times higher than Earth, because they have a very close orbit near the host star and receive an amount of big radiation.

In the near future, scientists plan to use new spectroscopy and observation devices to study the atmospheric composition and determine the mass, density, and physical properties of new planetary extremes. discovered this.