同时观测两天体解球面三角形求船位经纬度  

Fix by Solving Spherical Triangle with Simultaneous Observation of Two Heavenly Bodies

作　　者：苏怀富[1] 

机构地区：[1]广州航海高等专科学校航海系,广州510725

出　　处：《广州航海高等专科学校学报》1993年第1期37-41,共5页Journal of Guangzhou Maritime College

摘　　要：用解球面三角形的方法,通过两天体的球面距离,求得星位角,从而求得船位的经纬度。同时引进了星距、星对角和星对极角的概念。This paper is a part of the topic on researching into fix without D. R. (Dead Reckoning) position, which carries out it by solving spherical triangle. Through the solution, the star position angle can be found with so - called 'star distance' (Short for the spherical distance between two stars)determined So as to have the fix solved. At the same time , the general idea of the 'Z - S angle '(short for the angle between zenith distance and star distance) and the 'P-S angle'(short for the angle between pole distance and star distance)is introduced.

关 键 词：船位 经纬度 球面三角形 星位角 星距 星对角 星对极角 天体定位 

分 类 号：U675.64[交通运输工程—船舶及航道工程]