Santukan astrofisika wantah subjek sané jimbar pisan, sujana astrofisika katahan nganggén makudang disiplin ilmu fisika, taler mekanika, elektromagnetisme, mekanika statistik, termodinamika, mekanika kuantum, relativitas, fisika nuklir miwah partikel, malih fisika atom saha molekul.
Because astrophysics is a very broad subject, astrophysicists apply concepts and methods from many disciplines of physics, including classical mechanics, electromagnetism, statistical mechanics, thermodynamics, quantum mechanics, relativity, nuclear and particle physics,