김해천문대 60cm 반사망원경의 측광성능 분석과 소행성 탐사 (SEARCHING MINOR PLANETS AND PHOTOMETRIC QUALITY OF 60cm REFLECTOR IN GIMHAE ASTRONOMICAL OBSERVATORY)

서지정보

· 발행기관 : 한국우주과학회
· 수록지 정보 : Journal of Astronomy and Space Sciences / 24권 / 3호 / 209 ~ 218페이지
· 저자명 : 이상현, 강용우, 이경훈

초록

In this paper, we have presented the observational result for the photometric quality of main telescopes in Gimhae Astronomical Observatory. Also we performed the observation of searching new minor planets as competitive work in public observatories. The observation was carried out using 60cm telescope of Gimhae Astronomical Observatory on 2007 January 13. And, Sch\"{u}ler BVI filters and 1K CCD camera (AP8p) were used. To define the quality of CCD photometry, we observed the region of well-known standard stars in the open cluster M67. From observed data, The transformation coefficients and airmass coefficients were obtained, and the accuracy of CCD photometry was investigated. From PSF photometry, we obtained the color-magnitude diagram of M67, and considered the useful magnitude limit and the physical properties of M67. This method can be successfully used to confirm the photometric quality of main telescope in public observatories. To investigate the detection possibility of unknown object as astroid, we observed the near area of the opposition in the ecliptic plane. And we discussed the result. Our result show that it can be possible to detect minor planets in solar system brighter than V$\sim$18.3mag. and it can carry out photometric study brighter than V~16mag. in Gimhae Astronomical Observatory. These results imply that the public observatories can make the research work.

영어초록

In this paper, we have presented the observational result for the photometric quality of main telescopes in Gimhae Astronomical Observatory. Also we performed the observation of searching new minor planets as competitive work in public observatories. The observation was carried out using 60cm telescope of Gimhae Astronomical Observatory on 2007 January 13. And, Sch\"{u}ler BVI filters and 1K CCD camera (AP8p) were used. To define the quality of CCD photometry, we observed the region of well-known standard stars in the open cluster M67. From observed data, The transformation coefficients and airmass coefficients were obtained, and the accuracy of CCD photometry was investigated. From PSF photometry, we obtained the color-magnitude diagram of M67, and considered the useful magnitude limit and the physical properties of M67. This method can be successfully used to confirm the photometric quality of main telescope in public observatories. To investigate the detection possibility of unknown object as astroid, we observed the near area of the opposition in the ecliptic plane. And we discussed the result. Our result show that it can be possible to detect minor planets in solar system brighter than V$\sim$18.3mag. and it can carry out photometric study brighter than V~16mag. in Gimhae Astronomical Observatory. These results imply that the public observatories can make the research work.

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