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The two‐body problem: A diagrammatic discussion

 

作者: F. Remy,   F. Mignard,  

 

期刊: American Journal of Physics  （AIP Available online 1984）
卷期: Volume 52, issue 12  

页码: 1116-1121

 

ISSN:0002-9505

 

年代: 1984

 

DOI:10.1119/1.13739

 

出版商: American Association of Physics Teachers

 

关键词: ORBITS;CELESTIAL MECHANICS;PLANETS;SATELLITES;TWO−BODY PROBLEM;PHASE SPACE;VECTORS;VELOCITY

 

数据来源: AIP

 

摘要:

The motion of planets and satellites is investigated by considering mainly the velocity vector, rather than the position. We introduce a convenient diagram in the velocity subspace to describe the orbital properties: semi‐major axis, eccentricity, pericenter and apocenter distances. Orbital changes resulting from the atmospheric drag or from any sudden modification of the velocity vector are easily inferred from the diagram. Sample applications are presented as well.

 

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