Don't get me wrong, astrophysics, like most types of physics, is highly mathematical. If you wanted to study it in depth, you would need a lot of mathematics. But astrophysics is a wide field and you can learn a lot, at least at a beginner level, with just a little calculation. Therefore, Astronomy 111 could be taken in the second year, however, exceptionally motivated students may consider taking it in their first semester at Williams along with physics and mathematics.
An essential ingredient in the undergraduate training of these students is experience in physics and mathematics. This is a flexible program for students who plan to pursue technical or professional careers in areas that require a strong foundation in physical and mathematical sciences.