by Staff Writers
Paris (ESA) Apr 07, 2017
A Soyuz rocket operated by Arianespace from Europe's spaceport in Kourou will boost ESA's upcoming exoplanet satellite into space.
CHEOPS will share the ride into space with another payload, with the two separating in turn into their own orbits soon after ascent.
Arianespace has confirmed it will provide the launch services, with the contract to be signed by ESA in the coming weeks.
While the exact launch date remains to be confirmed, CHEOPS is expected to be ready by the end of 2018 for shipping to Kourou, with all testing completed.
Once in space, CHEOPS - the CHaracterising ExOPlanet Satellite - will target nearby, bright stars already known to have orbiting planets.
Through high-precision monitoring of a star's brightness, scientists will examine the transit of a planet as it passes briefly across the star's face. This allows the radius of the planet to be accurately measured. For those planets of known mass, the density will be revealed, providing an indication of the structure.
These key features will help us to understand the formation of planets in the Earth-to-Neptune mass range. The mission will also contribute to ideas about how planets change orbits during their formation and evolution.
CHEOPS will also identify targets for habitability studies using future ground- and space-based telescopes, including the international James Webb Space Telescope being launched next year.
CHEOPS will operate in a 700 km altitude orbit around Earth angled about 98 degrees to the equator. As it circles the globe from pole to pole, the satellite will ride the terminator between day and night such that it will always be directly above sunrise or sunset.
This orbit offers stable temperatures and a constant solar illumination, keeping the solar array in sunlight while minimising the effects of stray light leaking into the telescope.
CHEOPS is an ESA mission in partnership with Switzerland and with important contributions from 10 other member states.
Mountain View CA (SPX) Apr 07, 2017
Astronomers using NASA's Kepler space telescope have found a planet 219 light-years away that seems to be a close relative to Venus. This newly discovered world is only slightly larger than Earth and orbits a low-temperature star called Kepler-1649 that's one-fifth the diameter of our Sun. The planet tightly embraces its dim home star, encircling it every 9 days. The tight orbit causes the ... read more
CHEOPS at ESA
Lands Beyond Beyond - extra solar planets - news and science
Life Beyond Earth
|The content herein, unless otherwise known to be public domain, are Copyright 1995-2017 - Space Media Network. All websites are published in Australia and are solely subject to Australian law and governed by Fair Use principals for news reporting and research purposes. AFP, UPI and IANS news wire stories are copyright Agence France-Presse, United Press International and Indo-Asia News Service. ESA news reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. All articles labeled "by Staff Writers" include reports supplied to Space Media Network by industry news wires, PR agencies, corporate press officers and the like. Such articles are individually curated and edited by Space Media Network staff on the basis of the report's information value to our industry and professional readership. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space Media Network on any Web page published or hosted by Space Media Network. Privacy Statement|