NASA’s exoplanet-hunting space telescope has arrived two months ahead of its planned launch. The Transiting Exoplanet Survey Satellite (TESS) was delivered via truck to NASA’s Kennedy Space Center (KSC) on Monday (Feb. 12), agency officials said. The spacecraft made the journey from the Dulles, Virginia, facilities of the aerospace company Orbital ATK, which had spent the last year building and testing TESS. TESS is scheduled to lift off atop a Space X Falcon 9 rocket no earlier than April 16 from Cape Canaveral Air Force Station, which is next door to KSC.
For the first time from the moment of opening of the first extra solar planets scientists could see such planet by supervision in the x-ray range with help of Chandra space telescope and the European XMM Newton. The majority known exoplanets (which number at present exceeds 900) opened with help of a so-called transit method — by fixing of small fluctuations of brightness of stars when passing planet against a star disk. Still supervision was conducted only in the optical range, but now scientists managed to see x-ray transit. Thousand candidate exoplanets were found thanks to transits in visible light. At last, the scientists could see one in a X-ray, which is important as gives new information on properties of exoplanets.
For the first time Scientists from Great Britain could define color of a planet out of Solar system. With help of pictures from Hubble telescope they established that the gas giant in constellation of Chanterelle is painted in bright blue color. Thus they explained that as the reason of such coloring serve not water oceans, as on Earth, and the melted glass. Astronomers could define color of a planet, having tracked how the range depending on the provision of a planet in relation to the star changed. The first of them is- when the planet was closed from supervision by a star, and the second – when it was in a visibility range.
The first results of the analysis of eight hot planets showed that the structure of the atmospheres of these exoplanets is more difficult, than was considered earlier. Catharine Hitson from University of Exeter, England, delivered the report on carrying out this research on the National astronomical assembly which was taking place in Saint Andrews, Scotland, on July 5. Hot planets represent huge exoplanets the size approximately about Jupiter. The exoplanets address in such short distance to the stars that the atmospheres of these planets are warmed to 1000-3000 degrees Celsius. Astronomers can find what gases are present at the atmospheres of hot planets, analyzing a range of the star light which has passed through the atmosphere of a planet when a planet is directly before a disk of the star.
The American scientists analyzed the data collected by a Kepler space telescope in scattered cluster of stars on a joint of constellations of the Swan and Lira. In one of them the scientists found two small impossible planets. Earlier the existence of these plants was considered as the impossible. Soren Meibom (from the Harvard-Smithsonian center of astrophysics in Cambridge) and his colleagues analyzed the data collected by a Kepler space telescope at supervision over cluster of stars in constellations of the Swan and Lira. In total scientists tracked fluctuations in brightness of 377 stars. In the scattered congestion NGC 6811 in Swan constellation which is removed from on 3 thousand light years, they found two impossible planets which brightness periodically went down. Scientists tracked its changes and came to a conclusion that blinking of these stars arose because on their disk passed rather small giant planets of Kepler-66b and Kepler-67b, whose radius were more than terrestrial everything by 2,8-2,9 times.
Scientists managed to find a young giant planet at record distance from a star in 80 astronomical units. Discovery is made with help of observations over a dust disk, which astronomers made with use of telescope Hubble. The giant planet is found near a star of TW Hydrae which belongs to the class of red dwarfs and removed from Earth for 176 light years. The age of a star is estimated at eight million years that isn’t enough to measures of star evolution. About the youth of TW Hydrae speaks including existence round a gas-and-dust disk. New pictures allowed scientists to see that the disk is non-uniform: telescope Hubble found in it a ring gap in the form of a strip at distance about 80 astronomical units from the center. For comparison, the radius of an orbit of the Neptune is equal to 30 astronomical units, distances from Earth to the Sun is150 million kilometers.
The black gas giant of TrES-2b rotating round a star of the spectral class G0V GSC 03549-02811 was open by the transit Trans-Atlantic Exoplanet Survey method on August 21, 2006. The surprising planet is located at distance about 720-750 light years from Earth in zodiac the Dragon constellation. Opening of the gas giant TrES-2b was confirmed on September 8, 2006.
Astronomers were extremely lucky to find an exoplanet with a direct method.
It is quite difficult to find the exoplanet, which is far from our Solar System. For their detection astronomers use indirect methods, but this time scientists were very lucky. They managed to find huge massive exoplanet a direct method at the help of tools of a land telescope of VLT, which is in Chile.
Besides, scientists quite simply found exoplanet HD95086 b in constellation of Kiel on removal of 300 light years from Earth, they also photographed it. This planet lives in an orbit round the central star of HD95086.
The telescope Kepler found at once two potentially manned planets rotating round the general star. Only twenty years ago astronomers didn’t know about existence of similar planets, and the Solar system, even taking into account the latest discoveries in area of exoplanet, continued to be considered as the unique. However opening of planetary system at a star of Kepler-62 is capable to change this representation. Planets from this scattering differ by the size, and round a star they do a complete revolution for the period of 6 days to 9 months. Two most remote of these planets and the most suitable lives were open for emergence by the astronomer from the Washington University Eric Eygol. The most extreme, Kepler 62f probably a firm planet, by only 1,4 times of the continent, makes a turn round a star in 267 Earth days. Her neighbor, Kepler 62e, which has also got to a zone of a habitability, in 1,6 times more Earth, year on it makes 122 Earth days, and from a star she receives 20% more energy, than our planet.