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Surprisingly, our solar system hosts a vast and still unexplored area. The Oort cloud is the outermost and the largest structure of the solar system but is too distant to be seen even by present-day giant telescopes. I found that our observation systems based on multiple small telescopes, each attached with a high-sensitivity video camera, can detect Oort cloud objects indirectly through their stellar occultation events; second scale stellar flux drops when they are passing in front of a star. I would like to reveal this mysterious outer edge of the solar system by detecting such short-timescale stellar occultation events using our observation systems.
Observational techniques of optical short-timescale astronomical events established by our movie observation systems give us another unique insight into the unexplored universe, such as extrasolar planetary systems around flare stars. Light echoes caused by these stars’ superflares will lead to unprecedented detections of solar system analogs, such as extrasolar asteroid-belts, Kuiper-belt analogs, and planets like the Earth. I would like to achieve detections of these solar system analogs through movie astronomical observations.