Hello,

Astrophysics is the study of law of Physics and to use to in study of cosmos. It is a detailed study of using all mathematical and physics equations in order to study various phenomenon of cosmos.

Subjects included in Astrophysics are.

Electromagnetism

Thermodynamics

Relativity

Quantum physics

Modern physics

Waves

Optics

There is a 3 year bsc in astrophysics course offered by various universities like -

Punjab university, Punjab

Andhra university college of science and technology, Andhra pradesh

Osmania university, Hyderabad

Thank you and all the best