Scientists find new solar systems with planets the same size as ours

Rodiano Bonacci
Giugno 11, 2018

It's a super-Neptune or sub-Saturn size, which is of 27X Earth's mass and 6X Earth's radius. The team found the planet to be smaller in size than Saturn and bigger than Neptune.

Ahmedabad, India, have identified a new exoplanet, a super-Neptune planet, situated at 600 million light-years far from the Earth.

Otherwise, the planets are probably inhospitable: they are very close to their star and therefore very warm. The newly-found planet is reportedly 600 light years away from the Earth, and its mass is around 27 times that of the Earth.

The gravitational pull caused by a planet on its host star makes it wobble around their common center of mass, which shifts the spectra and can be measured in terms of Radial Velocity using precise and stabilised High Resolution Spectrographs, like the PARAS. Scientists have named the host star as EPIC 211945201 or K2-236.

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

ISRO website states that the 1.2 m InfraRed Telescope at Mount Abu is the first major facility in India that is specifically designed for ground-based infrared observations of celestial objects.

Indian researchers at Physics Research Laboratory (PRL), for the first time, have succeeded in detecting a planet revolving around a star. Very few such spectrographs exist around the world (mostly in the U.S. and in the Europe) that can do such precise measurements. The PRL scientists observed the target over a time-baseline of 420 days (in about 1.5 years) using the PARAS spectrograph for probing the nature of the system.

The Instituto de Astrofísica de Canarias (IAC) and the University of Oviedo presented the discovery of two new planetary systems, one of them hosting three planets with the same size of the Earth. But it does not necessarily mean that these planets are also habitable or have conditions necessary to support life.

According to Phys.org, the important discovery of these new planetary systems was made possible by the K2 mission that was undertaken with the use of NASA's Kepler satellite, with work that began in earnest in November, 2013.

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