The movements of which celestial bodies in the starry sky represent a spiral with variable size and pitch?

This is how a comet moves in the starry sky when it approaches or moves away from the Earth. Loops are formed due to the Earth’s orbital motion.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.