Thursday, January 14, 2016

100 new exoplanets by Kepler unearthed? – Sciences et Avenir

HARVEST . In January 2015, the Kepler space telescope was celebrating the discovery of his thousandth exoplanet. A year later, at a conference in the Assembly of the American Astronomical Association (ASA), scientists announced the identification of a hundred new stars and perhaps 234 in all will be announced in the coming weeks. An unprecedented success, however, overshadowed by a recent study that invalidates some results obtained.



The number of exoplanets discovered by Kepler was recently revised downwards

In May 2013, Kepler telescope has experienced a failure of its positioning system. Two of the four gyroscopes, which are used to guide the purpose and point toward targeted stars have passed away. At the time, it was believed the telescope permanently out of service. But the engineers who control Kepler managed to correct the situation by using the pressure generated by sunlight. So, NASA has decided to launch a new campaign called exoplanets detection K2 mission. In progress, first results were reported in January 2016 at the ASA meeting; consecutively they will be published. You can follow the exact count of exoplanets identified by Kepler this page.

WARNING . However, this number could be overestimated as suggested by a study at the Observatoire de Haute Provence, that presented you in December 2015. It focused on the larger exoplanets and astronomers of the Observatory explained that about 55 % of giant exoplanets announced by the Kepler satellite from NASA are in fact simple star!

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