Fig. 1. Schematic diagram of the structure of the star sensor

Fig. 2. Optical system of star sensor

Fig. 3. MTF curve

Fig. 4. Radial energy distribution diagram of the detector

Fig. 5. System distortion curve

Fig. 6. Two-dimensional model of the hood

Fig. 7. Three-dimensional model of the hood

Fig. 8. Scattering model of the hood

Fig. 9. Scattering model of optical parts

Fig. 10. Analysis and calculation steps of stray light

Fig. 11. Analysis ray trace of stray light

Fig. 12. Diffraction PST vs off-axis angle

Fig. 13. Total stray light analysis result of the system