• The Bulletin of The Korean Astronomical Society
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• v.32 no.2
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• pp.52.2-52.2
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• 2007

• The Bulletin of The Korean Astronomical Society
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• v.31 no.1
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• pp.37.1-37.1
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• 2006

• The Bulletin of The Korean Astronomical Society
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• v.32 no.1
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• pp.29.1-29.1
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• 2007

• Journal of The Korean Astronomical Society
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• v.29 no.spc1
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• pp.411-412
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• 1996

We present the update information on the International Radio Astronomy Observatory Suffa project and describe the original design of new 70-m radiotelescope RT-70 for millimeter astronomy as well. Some oreographic, seeing and climatic features of Suffa are also given.

• Publications of The Korean Astronomical Society
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• v.7 no.1
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• pp.97-105
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• 1992

The most favourable possibilities to observe the phenomena of gravitational lensing are the high amplification events and the time delay between the images. These effects provide us the information to determine the Hubble parameter and the matter distribution in the universe. The image properties due to micro-lensing also is of an importance to find out the size and the structure of the source.

• The Bulletin of The Korean Astronomical Society
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• v.24 no.1
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• pp.44-44
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• 1999

• The Bulletin of The Korean Astronomical Society
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• v.31 no.2
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• pp.47.1-47.1
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• 2006

• The Bulletin of The Korean Astronomical Society
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• v.34 no.1
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• pp.81.1-81.1
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• 2009

• Journal of The Korean Astronomical Society
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• v.33 no.3
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• pp.177-183
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• 2000

We arrange Korean ancient calendar with Solar calendar during Choseon Dynasty(A.D. 1392-1910). In this period, we have one representable history books and several books, and most of information for date are found from them, ChoseonWangjosillok(조선왕조실록) and Jeungbomunheonbigo(증보문헌비고), etc. In those books many astronomical data and calendar information data are contained, so we can make chronological tables. Most of the data are arranged based on those several books, and for doubtable data are identified from eclipse, historical events and lunar phase calculations etc. We find that arranged chronological tables during Choseon Dynasty are similar to that of China and somewhat different from that of Japan. In addition we summarize all misrecorded date data in ChoseonWangjosillok

• Journal of the Korean earth science society
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• v.42 no.3
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• pp.325-343
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• 2021

This study aims to develop two science education programs using Angbuilgu and ancient astronomical data, are Korean astronomical heritage, and explore its educational possibility through the pilot application. Considering the TSK compositional characteristics of Angbuilgu and ancient astronomical data, linkage with science curriculum, and linkage with NOS, Angbuilgu was developed as a hands-on activity for elementary school students and ancient astronomical data as a science inquiry activity for middle and high school students. The educational availability of the developed program was confirmed by pilot application to elementary and high school groups. Through the Angbuilgu activity, the students refined their conceptual knowledge by correcting misconceptions about the solar motion by season and then confirmed the possibility of connection with the concept of the celestial coordinate system. Students recognized the scientific value of Angbuilgu and understood the nature of interactions STS. In the ancient astronomical data activity, students experienced inductive and deductive inquiry methods and utilized various information and strategies. Through the activities, students improved their scientific understanding and attitude towards TSK.