Prediction and Observations of Leonid Meteor Shower in China

WU Guang-jie; LI Guang-yu; MA Yue-hua

Publications of the Yunnan Observatory > 2003 > 0(2): 82-94.

WU Guang-jie, LI Guang-yu, MA Yue-hua. Prediction and Observations of Leonid Meteor Shower in China[J]. Publications of the Yunnan Observatory, 2003, (2): 82-94.

Citation:

WU Guang-jie, LI Guang-yu, MA Yue-hua. Prediction and Observations of Leonid Meteor Shower in China[J]. Publications of the Yunnan Observatory, 2003, (2): 82-94.

Citation:

WU Guang-jie, LI Guang-yu, MA Yue-hua. Prediction and Observations of Leonid Meteor Shower in China[J]. Publications of the Yunnan Observatory, 2003, (2): 82-94.

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Prediction and Observations of Leonid Meteor Shower in China

1.
National Astronomical Observat ories/Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011
2.
Purple Mount ain Observatory, Chinese Academy of Sciences, Nanjing 210008
3.
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China

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Received Date: February 21, 2002
Revised Date: April 01, 2002
Published Date: April 14, 2003

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Abstract

Abstract

In recent years, observations in both the visible and the radio have been performed under the organizing of the Chinese LeonidWatch. We have observed some interesting phenomena, like the filamentary structure of the shower, the variat ions of the size distribution of meteoroids and the mass density. In addition, we made progress in their data processing. We observed the expected main shower in 1998 with radio. An abnormal peak in the ionosphere characteristic value was also detected about 18 hours after the main shower. From the fundamentals of celestial mechanics, we find the differences between the longitude of the ascending node of meteoroids and that of their parent comet depends on the ejection position as well as the ejection velocity. We successfully predicted the Leonids in 1999 and 2000.
- Meteoroids,
- Leonids,
- Comet

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