The Kepler spacecraft, launched on Mar 6, 2009, monitors photometrically 160,000+ stars with continuous, 30-min or 1-min sampling. Kepler's primary science objective is transit-driven exoplanet detection with emphasis on terrestrial, R < 2.5 R_Earth planets located within the habitable zones of Sun-like stars. The Kepler Science Center is dedicated to the service of the broad science community, with a charter to promote the exploitation of Kepler data and broaden the scientific impact of this mission. Kepler data provide a unique combination of photometric precision, duration, contiguity and source volume. The scientific community have opportunities to both develop observing programs and mine Kepler's rich public data archive. The community are encouraged to participate in Kepler's primary science and exploit the mission's unique archive and observing resources to pursue unrelated stellar and extragalactic astrophysics.
The 116 square degree field of view is near-continuously monitored with 92% duty cycle. Sources in the magnitude range 4 < Kp < 21 will be considered for community target nomination. The Kepler photometer utilizes one broad bandpass, ranging from 4,200 to 9,000 Å and the point spread function is approximately 6 arcsec FWHM. Photometric precision is ~50 ppm for a Kp = 12 G2V star integrated over 30 minutes.