Method for determining star point barycentric coordinate

A method for determining the star point barycentric coordinate comprises the following steps: 1, obtaining a focal length corresponding to a star sensor, the central point position of the star sensor,different rotating table positions and star point barycentric coordinates respectively corresponding to the different rotating table positions; 2, obtaining the acquisition range of the star point barycentric coordinates respectively corresponding to the different rotating table positions; 3, obtaining an effective rotating table position from the different rotating table positions; 4, acquiringthe star point barycentric coordinate at the effective rotating table position multiple times, and obtaining the average star point barycentric coordinate corresponding to the effective rotating tableposition according to the multiple star point barycentric coordinates; 5, obtaining the effective star point barycentric coordinate range corresponding to the effective rotating table position; and 6, obtaining the star point