DEVELOPMENT OF AN AUTOMATIZED DIFFERENTIAL PHOTOMETRY SYSTEM FOR THE 61CM REFLECTOR OF SOBAEKSAN OBSERVATORY

소백산 천문대 61CM 반사망원경을 위한 자동 차등측광 시스템의 개발

We developed an Automatized Differential Photometry System (ADPS) to achieve high time resolution and high efficiency in the photometric observations of short period variable stars. This ADPS has been introduced to the CCD camera system attached to the 6lcm Reflector at Sobaeksan Astronomy Observatory. Several new algorithms were devised for the controlling the telescope. the star recognition in a CCD frame and the aperture photometry, etc..As the result, the differential photometric observation was fully automatized without any manual control, and much faster data acquisition could be achieved over the conventional photoelectric differential photometry.