• Title/Summary/Keyword: go

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NEW TIMES OF MINIMUM AND A PERIOD CHANGE OF GO CYGNI

  • Oh, Kyu-Dong;Ra, Kee-Suk
    • Journal of Astronomy and Space Sciences
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    • v.15 no.1
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    • pp.69-74
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    • 1998
  • Two colour(B & V) photoelectric observations of EB-type eclipsing binary GO Cyg were carried out for 15 nights during October and December 1996. Three new times of minimum derived from our own observations are presented. With these and previously published times, the period variation is studied, and a continuous period increase of $dP/dt{\approx}1.51{\times}10^{-7}d/yr$ is estimated from the quadratic ephemeris.

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A Method of Ground Boundary Construction using Digital Aerial Photos (디지털항공사진을 이용한 지상경계 구축 방안)

  • Yeon, sang-ho;Min, kwan-sik;Jeong, in-jun;Jeong, seung-hyeon
    • Proceedings of the Korea Contents Association Conference
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    • 2010.05a
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    • pp.624-626
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    • 2010
  • 본 연구에서는 다차원공간정보의 하나인 디지털항공정사사진을 이용하여 필지별 지상경계를 생성하여 지상점유 토지의 형상을 확인해 보고자한다. 이는 필지의 관리적 측면에서 정확한 정보로써의 가치제고와 효용을 높이는데 있다.

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