The department of Physics, Engineering Physics and Astronomy Physics offers plans in both Physics and in Astrophysics.
MATH 111/6.0 or MATH 110/6.0 (linear algebra: see What MATH course should I take?)
MATH 121/6.0 or MATH 120/6.0 (calculus: see What MATH course should I take?)
PHYS 106/6.0 or PHYS 104/6.0 (Physics: see What PHYS course should I take?)
CHEM 112/6.0 (see first year Chemistry)
For a list of electives see here