An international group of astronomers reported on the discovery of two exoplanets, which rotate around the stars of solar type HD 137496 of 8.3 billion years. Both objects have been identified as hot super-mercury and cold Jupiter. Details about the opening are presented in the article available in the repository of preprints ARXIV.ORG.
Planets were identified by the Kepler Space Telescope, which today found more than 2,600 exoplanets. The discovery was done when the telescope watched HD 137496 as part of the mission of the K2 from August 23, 2017 to November 19, 2017. Scientists revealed transit signals on the gloss curve HD 137496, arising when some object passes on the background of the star disk, and determined their planetary nature.
The closest to the star of the exoplanet HD 137496 B is about 30 percent more than the Earth and about four times more massive. This planet consists mainly of iron, and the kernel is more than 70 percent of the mass of the object. HD 137496 B draws around the parent star every 1.62 days at a distance of about 0.027 astronomical units (one A.E. is equal to the average distance from the Sun to the Earth), and the equilibrium temperature is estimated at about 2130 Kelvin.
The second Exoplanet has received the designation HD 137496 C. It was classified as a cold Jupiter with a minimum mass of about 7.66 masses of Jupiter, and its equilibrium temperature is estimated at about 370 Kelvinov. The planet rotates around HD 137496 by highly eccentric (elongated) orbit every 480 days at a distance of 1.21 A.E. From Star.