What scientific sections does astronomy include? What is the difference?

Different researchers distinguish their sections in astronomy, but let us turn to the generally accepted classification:
1. Astrophysics – studies physical and chemical processes in celestial bodies and their systems.
2. Astrometry – here the name is clear, the section studies the exact position of celestial bodies, as well as their movements.
3. Theoretical astronomy – a section that studies motion in a gravitational field.



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