Extrasolar transiting planet survey with Kiso Schmidt telescope

Abstract

A transit of an extrasolar planet is a phenomenon that it cut across in front of its parent star. The detections of the phenomenon tell about the planet, such as its mass and density. We have been searching for the extrasolar planet candidates by transit method with the Kiso-Schmidt telescope from 2005. Wide field accurate photometric monitoring is necessary for successful planets detection using the transit method. The Kiso-Schmidt telescope has enough prerequisite because it has a wide field view (50'x 50'). We got about 3,000 lightcurves so far and detected near 50 variable star candidates. We present details and results of this observation.