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MENTAL FIELD ASTRONOMY AND OTHER MATTERS

 

作者: ShewellBriǵadier H. A. L.,  

 

期刊: Survey Review  (Taylor Available online 1963)
卷期: Volume 17, issue 129  

页码: 113-121

 

ISSN:0039-6265

 

年代: 1963

 

DOI:10.1179/sre.1963.17.129.113

 

出版商: Taylor&Francis

 

数据来源: Taylor

 

摘要:

AbstractRule11A.Polaris, the North or Pole Star, may be taken as coincident with the north celestial pole and as indicating true north with an error never exceeding 2°except in polar latitudes. It can be seen, in favourable circumstances, down to 15°or even 10°North. The two stars in the Great Bear, known as the pointers, are too well known to need further description. It is worth memorising that the Pole lies at a distance from the most northerly of the two pointers equal to about 5 times the distance between them. This may be useful in low latitudes or when there are patches of slow-moving cloud about.

 

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