 The energies for the events vary from 2 × 1033 to 2 × 1038 ergs.The Kepler spacecraft is a space observatory designed to find planets by the method of transits.A photometer continually monitors the brightness of 150,000 stars in a fixed area of the sky (in the constellations of Cygnus, Lyra and Draco) to detect changes in brightness caused by planets passing in front of the stellar disc.