CCD observation by Seikei High School Instruments: 15cm(TAKAHASHI FS-152) + ST-9E Comparison star GSC 1205.789 and GSC 1205.1059 SN2002ap 20020220.409 12.9CIR SSc Seikei High School Atsushi MIYASHITA Seikei High School / Seikei Meteorological Observatory http://www.seikei.ac.jp/obs/index.htm