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A fundamental determination of the planetary day and year

 

作者: Alan P. Lightman,  

 

期刊: American Journal of Physics  （AIP Available online 1984）
卷期: Volume 52, issue 3  

页码: 211-214

 

ISSN:0002-9505

 

年代: 1984

 

DOI:10.1119/1.13693

 

出版商: American Association of Physics Teachers

 

关键词: planets;orbits;rotation;periods;fundamental constants;natural units;eti

 

数据来源: AIP

 

摘要:

General theoretical considerations and assumptions determine in order of magnitude the length of the day and year on habitable planets. These time scales are expressible in terms of fundamental constants, and their universality may have implications for extraterrestrial life.

 

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