To study kinematics of solar prominences, we have made Ha spectrographic study of an eruptive prominence which appeared on the 27th of August, 1992 with a position angle of 270 deg. The observation was carried out by a Littrow type spectrograph and a G1 CCD camera attached to the 25cm coronagraph at Norikura Coronal Station. In taking the spectral data the slit was placed in parallel to the solar limb at 7 different heights, each being separated by 5 arcsec with a time step of 30 sec. The observed eruptive prominence shows a wide range of line of sight Doppler velocity, spanning from Vdopp=−17.5km/stoVdopp=58.2km/s Vdopp=−17.5km/stoVdopp=58.2km/s . It is also found that the velocity increases with height at the rate of ΔV=0.86km/s/arcsec ΔV=0.86km/s/arcsec .

• 박영득(천문대 보현산천문대) | PARK YOUNG DEUK (Bohyunsan Optical Astronomy Observatory, Korea Astronomy Observatory)
• 윤홍식(서울대학교 천문학과) | YUN HONG SIK (Department of Astronomy, Seoul National University)
• 문용재(천문대 보현산천문대) | MOON YONG-JAE (Bohyunsan Optical Astronomy Observatory, Korea Astronomy Observatory)