CAPE CANAVERAL, Florida / National Harbor, Maryland, 11 November.- The AP reports: A scientific team revealed on Wednesday the presence of a rocky planet in our galaxy.
The astrophysicists gave the new world called GJ 1132b by the little star orbiting
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Although the temperature can reach 230 degrees Celsius (450 Fahrenheit) on the planet, has a thick Venusian atmosphere type
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The planet GJ 1132b is just 39 light years away, within the scope of the Hubble Space Telescope
A team led by Zachory Berta-Thompson, Massachusetts Institute of Technology, discovered the planet in May using telescopes in Chile. He and his colleagues report their discovery in the online edition of the November 11 issue of Nature
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Scientists say the exoplanet is called like planets outside our solar-system is too hot to support life.
“If we find this cute hot planet has maintained its atmosphere for billions of years, it bodes well for the long-term goal of study cooler planets that could harbor life, “Berta-Thompson said in a statement
Berta-Thompson and his colleagues estimate that GJ 1132b has a diameter of 14,700 kilometers (9200 miles), slightly more than Earth. But it is believed that its mass is 60% higher
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The star that surrounds -GJ 1132- is a red dwarf of a fifth of the size of the sun. The planet orbits at just over 2 kilometers and why it is so hot.
” Our goal is to find a twin of Earth, “said astronomer David Charbonneau of the Harvard-Smithsonian Center Astrophysics, one of the authors, “but we found a twin passage of Venus”
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In another article in Nature, Dake Deming, University of Maryland, who was not involved in the study, he said that astronomers can study the new planet with” unprecedented fidelity “given its proximity and reduced size of its star. So what ‘possibly the most important planet found outside our solar system “
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V774104
Jose Manuel Nieves, in abc.es reports: Many will seem incredible, but the fact is that our Solar System, the corner we occupy in the universe still holds a number of surprises. And one of them, a new planet, has just been revealed by a group of astronomers at the Carnegie Institution in Washington. It is an object of between 500 and 1000 km in diameter and is three times farther from the Sun than Pluto. In fact, it is the most distant body discovered to date within our own planetary system. Waiting for a name, the newest member of our planetary family has been designated as V774104 (Science)
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It will take another full year of research to accurately determine the orbit of the new world and its other characteristics, but according to its discoverers, the object could be included in an emerging class of ” ends “of the Solar System objects, with strange orbits that suggest the influence of even greater hidden or even other planets near stars hidden
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“We can not explain the orbits of such bodies from what we know of the solar system explains Scott Sheppard, an astronomer at the Carnegie Institution, today announced the findings at a meeting of the Astronomical Society Americana-. Currently, V774104 is 15,400 million km. del Sol. Or what is the same, 103 astronomical units (AU). ” One AU is the distance separating the Earth from the Sun, and is equivalent to 150 million km. V774104, then, is much farther from the sun than any other known world. Sheppard made his discovery using the 8-meter Japanese Subaru telescope in Hawaii
World cream or internal object Oort
Depending on its orbit, the new dwarf planet could be included in two different” planetary clubs. ” If your journey will take you, at some point, to be closer to the sun, it could be included in the group of relatively common icy worlds whose orbits are determined by the gravitational influence of Neptune. But if instead its orbit never take him to approach the Sun, then directly enter part of the exclusive club that, for now, two other members belong. Sedna and 2012 VP113
In fact, these two dwarf planets to the sun will never come within 50 astronomical units, and their elongated orbits take them even higher than 1,000 UA distances. Sheppard calls “Objects inner Oort cloud” to distinguish them from the icy bodies in the Kuiper Belt, nearby, at distances of 30 to 50 AU. The Oort Cloud is a huge spherical region densely populated with objects and which completely surrounds the solar system, thousands of AU away, marking its external borders and limit the gravitational influence of the sun.
A force of unknown origin
One of the most interesting aspects of the objects inside the Oort cloud it is precisely that the eccentricity of their orbits can not be explained from the known structure of the solar system. In fact, astronomers are convinced that there must be “something more” to disturb these orbits so much. Something like an undiscovered giant planet that “sleep” in the depths of the cloud, perhaps a world expelled billions of years ago the inner solar system and still remain in the vicinity, with its enormous mass affecting the orbits . of nearby objects
Other theories suggest that these distances, possible planets (and their orbits) could be affected by the gravitational pull of other nearby stars. And there are even claim that gravitational forces still active in the solar system could come from the distant time when the Sun formed, when the “proto Sun” was surrounded by other “stellar nurseries” that could have provided the ” Gravitational nudges “necessary to determine the movements we observe today
In any case, until Sheppard and his team are able to accurately determine its orbit, we will not know how V774104 interesting. What is indisputable is that the new world already has the merit of being, by far, the most distant object yet discovered in the Solar System.
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