Searching Minor Planets and Photometric Quality of 60cm Reflector in Gimhae Astronomical Observatory

Details Searching Minor Planets and Photometric Quality of 60cm Reflector in Gimhae Astronomical Observatory Searching Minor Planets and Photometric Quality of 60cm Reflector in Gimhae Astronomical Observatory

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007jass...24..209l&link_type=abstract

Journal of Astronomy and Space Sciences. Vol. 24, no. 3, 209-218

Astronomy and Astrophysics

Astronomy

Public Observatory, Gimhae, Ccd Photometry, M67, Asteroid

Scientific paper

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, Schüler 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 ˜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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