Likewise, how is physics related to astronomy?
Astronomers use the principles of physics and mathematics to learn about the fundamental nature of the universe and its components, including the sun, moon, planets, stars, and galaxies. As such, astronomy is sometimes considered a subfield of physics. Most physicists and astronomers work in research and development.
One may also ask, what is the difference between physics and astronomy? However, while a physicist might spend their days putting different types of atoms together to see what kind of reaction occurs, an astronomer uses difficult calculations to measure distances between stars and planets.
In respect to this, does astronomy require physics?
The general answer is that astronomy is an applied branch of physics, and that means you need a lot of math. If you are just taking an astronomy undergrad as second major, you can probably get out with just a few semesters of calculus, and possibly differential equations.
Is Astronomy easier than physics?
As as already been said, it is a branch of physics. As such, it definitely isn't harder. On the other hand, introductory mechanics, the first course in the physics sequence, is calculus based. It is typically very rigorous, much more so than the introductory astronomy courses.
