NASA, NASA Kepler, NASA Kepler Mission, Kepler Spacecraft

By Which Spacecraft The Earth Size Determined

Introduction:- Kepler is a space observatory launched by¬† NASA to discover the Earth-size planets. The spacecraft named on Astronomers Johannes Kepler. The spacecraft launched on March 7, 2009. The principal investigator was William J. Borucki. NASA announced its retirement on October 30, 2018. It designed to survey a portion of the region of the Milky Way to discover the Earth-size exoplanets in or near habitable zones. This 9yearsr of service, Kepler observed 2,662 planets and 530,506 stars. The diameter of Kepler was 0.95 m (3.1 ft). And the collecting area of 0.708 m2 (7.62 sq ft). The wavelength ranged between …

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