Search for earth-analogs with the Planet Hunter Mission

Planet Hunter is a design for a space borne astrometric mission. Planet Hunter utilizes technology developed for the Space Interferometry Mission (SIM). The instrument consists of two Michelson stellar interferometers and a telescope. The first interferometer chops between the target star and a set of reference stars. The second interferometer monitors the attitude of the instrument in the direction of the target star. The telescope monitors the attitude of the instrument in the other two directions.