Visual observations of 1998 Leonids in Delingha and their preliminary analysis
摘要:
On the basis of the observational data obtained by the Sine-Dutch Joint Leonids Observation Team at Delingha Station of Purple Mountain Observatory from Nov. 13 to 18, 1998, and those obtained in other places of China during the same period, the distribution characteristics of the 1998 Leonids are analyzed and a three-layer structure of the meteoric shower encountered by the Earth is proposed.