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성현일,안영숙,임인성,양홍진,김봉규,김상철,신재식,강준모,손상모,남현웅,SUNG HYUN-IL,AHN YOUNG SUK,YIM IN SUNG,YANG HONG-JIN,KIM BONG GYU,KIM SANG CHUL,SHIN JAE SIK,KANG JOON MO,SOHN SANGMO,NAM HYUN-WOONG 한국천문학회 2004 天文學論叢 Vol.19 No.1
We have constructed a database of Korean historical astronomical records. The database contains observational data recorded from BC 2183 to AD 1910. We have also built a webpage for searching through the database based on the following criteria: (1) dynasties (2) astronomical phenomena (3) reigning kings (4) references (5) keywords. Users may select two or more dynasties to search through the database for a certain phenomena, and compare data with those of other dynasties. The queried data can be primarily sorted by one critetion, and secondarily sorted by another, each in ascending or descending order. The search results give dates both in Solar and Lunisolar calendars, years and dates in Sexagenary cycle, dynasties, reigning kings, astronomical phenomena, and references. The database and webpage were constructed under the research project of the Korean Astronomical Data Center (KADC, http://kadc.kao.re.kr) in Korea Astronomy Observatory (KAO).
성현일,김봉규,임인성,김상철,안영숙,Sung, Hyun-Il,Sang, Jian,Kim, Bong-Gyu,Yim, In-Sung,Kim, Sang-Chul,Ahn, Young-Suk 한국천문학회 2005 天文學論叢 Vol.20 No.1
We collected eleven large astronomical catalogues, which include 2MASS, USNO B1.0, GSC 2 catalogues and so on. Most of these catalogues are the frequently used by astronomers for all sorts of applications. But the researches are faced with the problem of accessing these databases because these catalogues contain from tens millions up to thousands of millions of records. So we developed a web application system to manage these large catalogues, the main purpose of the web application is to allow a powerful and efficient querying activity on these catalogues through internet by using a simple web interface. User could retrieve the query result in variety of formats including plain text, HTML, Microsoft Excel format (XLS), and VOTable. Furthermore, user also could display and analyze result graphically by using a powerful interactive visualization tools named VOPlot which was developed by the Virtual Observatory-India (VOI) project.
DIGITIZED SKY SURVEY I 자료의 검색 DB 구축
성현일,김상철,김봉규,임인성,안영숙,손상모,양홍진,Sung, Hyun-Il,Sang, Jian,Kim, Sang-Chul,Kim, Bong-Gyu,Yim, In-Sung,Ahn, Young-Suk,Sohn, Sang-Mo-Tony,Yang, Hong-Jin 한국천문학회 2005 天文學論叢 Vol.20 No.1
The First Generation Digitized Sky Survey (DSS-I) is a collection of digitized photographic atlases of the night sky taken from the Palomar Observatory (northen sky) and the Anglo-Australian Observatory (southern sky). DSS-I is widely used by the astronomical community for a number of applications including object cross-identification and astrometry. However, accessing and retrieving the actual images are nontrivial owing to the huge size (> 60 GB) of the dataset. To facilitate retrieval process of DSS-I data for the public, Korean Astronomical Data Center (KADC) developed a web application that provides not only data retrieval but also visualization functions. The web application consists of several modules developed using Java Applet, Jave Servlet, and JaveServer Pages (JSP) technologies. It allows users to retrieve images efficiently in various formats such as FITS, JPEG, GIF, and TIFF, and also offers an interactive visulization tool, ImgViewer, for displaying/analyzing FITS images. To use the web application, users require a Java-enabled web browser.
MySQL과 JSP를 기반으로 한 관측자료의 데이터베이스화
성현일,김상철,임인성,김봉규,안영숙,남현웅,손상모,양홍진,SUNG HYUN-IL,KIM SANG CHUL,YIM IN SUNG,KIM BONG GYU,AHN YOUNG SUK,NAM HYUN-WOONG,SOHN SANGMO,YANG HONG-JIN 한국천문학회 2004 天文學論叢 Vol.19 No.1
As a core project of the Korean Astronomical Data Center (KADC) in Korea Astronomy Observatory (KAO), we have constructed a framework of astronomical database using MySQL and JSP. MySQL database server is a powerful open source database management system, and JSP technology provides a simplified, fast way to create dynamic web content. Combined together, MySQL and JSP enable us to develop server-independent web-based applications efficiently in a short amount of time. The MySQL tables and JSP programs embedded in our database are built/written in a way to benefit both users and managers. We plan to expand our database by supplementing additional data in the near future. Our newly constructed database is expected to be the prototype of the Korean Virtual Observatory (KVO).