Celestial navigation is a crucial technique used in space missions to determine spacecraft positions and orientations with respect to celestial bodies. It involves the following principles and techniques:
1. Celestial Sphere: Celestial navigation is based on the concept of the celestial sphere, an imaginary sphere surrounding the Earth. This sphere is used as a reference framework for celestial navigation calculations. It assumes that celestial bodies are fixed on the surface of the celestial sphere and their positions can be precisely determined.
2. Celestial Bodies: The primary celestial bodies used in celestial navigation are stars, planets, and the Moon. These bodies serve as reference points in the sky. They have known positions, and their movements are predictable. By observing the positions of these celestial bodies relative to a spacecraft, its location can be determined.
3. Astronomical Observations: Celestial navigation involves the precise measurement of the angles between celestial bo....
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