COnvection, ROtation & planetary Transits

COnvection ROtation and planetary Transits, ist ein europäisches Projekt: Frankreich, Brasilien, Österreich, Deutschland, ESA Start: 27 Dezember 2006

Orbit : Inertial (polar) at 896 km altitude.  

 COROT observe perpendicularly to the orbit plane : no Earth occultation.   At the beginning of a long duration observation (150 days) the sun is near the orbit plan.   180° satellite rotation at each change of target, so the sun remains at more than 90° from the observed field.   

Die Helligkeit von einigen 10000 Sternen wird gleichzeitig über mehrere Monate

gemessen30cm Teleskop

1.Messung von veränderlichen Sternen(Astroseismology)

2. Entdeckung von extrasolaren Planeten 2. Entdeckung von extrasolaren Planeten um Sterne mittels Transitsum Sterne mittels Transits

Eté : ligne de visée à 18 h 50Eté : ligne de visée à 18 h 50

The polar orbit of Corot

a= 7274 km (896 km above the surface)

Period 1h 43 m

     About the Canada-France-Hawaii Telescope                                      CFHT is a joint facility of: •National Research Council of Canada (see also Herzberg Institute of Astrophysics), •Centre National de la Recherche Scientifique of France (see also CNRS/INSU ), and •University of Hawaii (see also UH/IfA ). The CFH observatory hosts a world-class, 3.6 meter optical/infrared telescope. The observatory is located atop the summit of Mauna Kea, a 4200 meter, dormant volcano located on the island of Hawaii. The CFH Telescope became operational in 1979. The mission of CFHT is to provide for its user community a versatile and state-of-the-art astronomical observing facility which is well matched to the scientific goals of that community and which fully exploits the potential of the Mauna Kea site.The Observatory headquarters are located in Waimea (also known as Kamuela by the Post Office), where CFHT has been part of the community since 1977. Waimea is a small country town of 6,000 nested at 2,500 feet in the saddle between the Mauna Kea dormant volcano and the Kohala mountains. Named by the 2000 Robb Report as one of the 10 most desirable places to live in the United States, it has retained its 150-year old Paniolo (cowboy) culture but also offers many conveniences of modern life. Along with its green pastures grazed by cows, horses, sheep, and goats, Waimea hosts excellent schools, a modern hospital, the Kahilu Theater, shopping centers, over a dozen restaurants, and more! More technical details on the telescope itself may be found in the CFHT Observatory Manual.