The LYRA-B space experiment: Goals and principles for its realization

We describe goals and principles for the realization the Lyra-B space experiment onboard the International Space Station, which is currently being prepared at the Sternberg Astronomical Institute. The main goal of the experiment is to carry out a high-accuracy, multicolor all-sky survey of stars down to 16 ^m –17 ^m . The detailed structure of the expected observational data, their possible scientific use, and a number of technical problems are discussed.