Rome, Aug. 2, 2015 – E ‘was discovered a new planet, considered the “neighbor” of the Earth. His name is HD 219134b, rocky planet that is 21 light years with a radius greater than our planet 1.6 times and revolves around one of the only constellation Cassiopeia. The planet is considered the “Rosetta Stone”, because its study will allow the reading of the other super-Earths.
The temperature of the extra planet closest to our Milky Way is glowing and is far from being habitable. To discover it was an international team of researchers which also includes scientists Italian National Institute for Astrophysics (INAF) and the University of Padua and the study was published in the prestigious journal Astronomy & amp; Astrophysics.
The director of Tng, Emilio Molinari explained that to identify our next Earth has been “Harps-N, mounted on our Galileo National Telescope (Tng) on the island of La Palma in the Canary Islands”, along with the telescope NASA’s Spitzer Space, who works in the infrared wavelengths outside interference sources present in our atmosphere.
Giusi Micela, director of the Astronomical Observatory of INAF Palermo, explains that although uninhabitable the discovery of this new planet “still opens exciting prospects for studying the atmosphere in the near future.” It is not the only discovery: the planet HD 219134b would belong to a planetary system consisting of three planets that scientists are going to study.
Piotto: “an unprecedented” – Professor Giampaolo Piotto, University of Padua and a member of the team that led to this sensational discovery said “It is a result unprecedented. It’s rocky planet closest to us, with characteristics very similar to those of Earth. As soon as we had confirmation of the discovery I thought here, we have the perfect script for the next film by Spielberg. It ‘a glowing planet, not hospitable to life, but what is more important is that it is now clear that we are getting closer and closer to finding a planet similar to Earth. We not there yet, but with the European Space Agency are building a satellite (PLATO) that certainly will reach the goal. It will take ten years, but in the end we are sure we will find another Earth, probably close to us … “.
Inaf: Do not just say” like Earth “for size – “The recent results of Kepler told us that you can find extrasolar planets similar in size to the Earth in the habitable zone of their parent star. It is much harder, however, determine the mass of these planets and probably can only be obtained with the measurements of radial velocities. “And ‘what writes INAF, the National Institute of Astrophysics in a statement. “So before we can characterize a twin Earth” the note continues, “you have to understand deeply how the activity affects the stellar radial velocities. For this we should observe a star continuously for several years with a precise instrument such as Harps-N and a stable reference such as Astro Comb (both installed to TNG). Not being able to study at night only one star, you just have to look at the stars of the day from the sun.
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