Earth-sized Planets Discovered in Planetary System

Earth-sized Planets Discovered in Planetary System

Indian researchers at Physics Research Laboratory (PRL), for the first time, have succeeded in detecting a planet revolving around a star. Indian Space Research Organization (ISRO) has announced this discovery on Friday and has also given insight into this important discovery.

The planet has been discovered using an indigenous spectrograph known as PRL Advance Radial Velocity Abu-sky Search or PARAS along with a 1.2m Telescope.

EPIC 211945201b's mass is around 27 times that of Earth's and it's estimated to be around six times greater in radius. Speaking to TOI from Ahmedabad, Chakraborty said the new planet, which is 600 light years away from Earth, was between the size of Saturn and Neptune.

With this discovery, India has joined the elite club of a handful of countries which have discovered planets around stars, ISRO said.


In the second system the main star is a red dwarf with an effective temperature of 3800 Kelvin. It has the name EPIC 211945201 (K2-236) and thus, the planet has been given the name EPIC 211945201B (K2-236B). Therefore, an independent measurement of the mass of the body was necessary for the discovery, which was made by the PARAS spectrograph. "Very few such spectrographs exist around the world (mostly in the United States of America and in the Europe) that can do such precise measurements", the space agency said on its website late on June 8.

Astronomers from the Spanish University of Oviedo according to the telescope "Kepler" has come to the conclusion that in space there are two new planetary systems and three earth-like planets. This discovery is the first of its type that occurred on the Indian territory, placing the Asian country on the very selective list of the countries that discovered far-distant worlds. Abhijeet Chakraborty. Researchers briefed that this planet has 600-degree Celsius temperature on its surface. The PRL scientists observed the celestial objects over a time-baseline of 420 days (about 1.5 years) using the PARAS spectrograph to understand the nature of the star system.

However, calculations suggest that the heavy elements, ice, silicates, and iron content are 60-70 % of the total mass.

The other system has two much larger planets.

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