Abstract
In this paper, a guide star selection algorithm based on angular grids is presented, which can be used to minimize the size of initial star catalogue and guarantee the distribution of the guide stars as uniform as possible . This algorithm is preformed by dividing the FOV into many equal angular grids and mapping the grids onto the celestial sphere. The guide stars are selected in the extent of grids and their brightness and position in the celestial sphere are considered as well. The experiment with real star catalogue data demonstrates the validity of the proposed algorithm.
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