The new Proxima c planet is being seen as a prime candidate for a "super Earth", though it is believed to be much smaller than Proxima b. Yet how many of them are like Earth - and how common Earth-like worlds may be - is still up for debate. Whereas Proxima b orbits the star once every 11 Earth days, Proxima c has an orbital period of five years. Those massive gas giants are believed to have rocky cores around the mass and shape of Earth, once you lift away the hydrogen and helium.
After the discovery of the first planet around Proxima Centauri, the researchers speculated on the existence of another planet in the system.
A light-year, which measures distance in space, equals 6 trillion miles. Instruments such as Kepler and the new TESS satellite use the transition method to detect small dips in light output while planets pass in front of their home stars.
This artist's impression shows the planet Proxima b orbiting the red dwarf star Proxima Centauri, the closest star to the Solar System.
It has a minimum mass is half of that of Neptune, which still puts it in the "super Earth" category, though it is still among the low mass ones.
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Stars do not remain completely still when they are orbited by planets. Beyond the "snowline" of the solar system means that any water on the planet would likely be frozen. "Or it suggests that the protoplanetary disc was much hotter than usual". They dubbed the planet Proxima c in the paper published in the journal, Science Advances.
The arena team of researchers analyzed 17 years of files from the High Accuracy Radial Velocity Planet Searcher (HARPS) and the Ultraviolet and Visual Echelle Spectrograph (UVES) which may per chance be every phase of the European Southern Observatory telescopes in Chile. Proxima is the nearest star to the Sun.
"Even the planetary system closest to us can hold interesting surprises", said Fabio Del Sordo in an email, study author and postdoctoral researcher in the physics department of the University of Crete. "Proxima represents an excellent location for understanding the closest exoplanets and developing new technologies to better understand the universe we live in".
The first planet found around the star, Proxima b, is six times smaller and 30 times closer to its star, which also makes it warmer, according to the researchers.
Mr Jones added: "We look forward to confirming the signal with new facilities and finding out how similar or different from our Solar System planets Proxima c really is". If there is life on the planet, it would be affected by this radiation, but it is pure speculation on the type of effect. These movements change the light wavelength of the star and move between red and blue depending on the position of the planet. It appears to be like treasure the potentialities are high that Earth's twin exists somewhere, even supposing it is questionable whether humans would ever have the opportunity to focus on with.