What celestial bodies in the starry sky of the Earth move in spirals with variable size and pitch?

Such a motion has a comet when moving to or 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.