Astronomical Sciences

Astronomical Sciences

About the Program

Astronomical Sciences studies the vast universe beyond Earth, discovering objects and phenomena that do not exist on Earth or in the solar system, such as planets orbiting other stars, black holes and forms of mass and energy that cannot be seen even though they form 95% of the universe. To study these objects, astronomical sciences integrates the methods and knowledge of all the other sciences.


Honours Bachelor of Science

Program Options


After completing your first year, you'll be asked to confirm what program(s) you wish to study – your Programs of Study. They can be integrated in unique ways to obtain your U of T degree, but must be one of the following three combinations: one Specialist; or two Majors; or one Major and two Minors. You don't need to worry about that now, but if you'd like to learn more about this process, watch our handy video (7 min).

Admission Requirements

You apply to an admission category, which is a collection of similar programs. Once you've accepted an offer of admission to our campus, we go into greater detail about specific program and course selection options.

At the end of your first year, you will choose your program(s), which means that your first year is an excellent opportunity to explore the full breadth of offerings.

Regardless of what you study, remember that you will receive a prestigious University of Toronto degree when you graduate that tells everyone that you are ranked among the best in the world!

OUAC Application Code
Program Course Prerequisites
English, Advanced Functions, Physics; (recommended: Calculus)
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Approximate Competitive Average
Mid to High 70s

The admission average is calculated with English (ENG4U) plus the next best five Grade 12 U or M courses. Meeting these minimum requirements does not guarantee you admission to the University. Admission is subject to space availability and competition.

The content in this section is based on requirements in the Ontario curriculum.

Find requirements to other common curricula:

Please visit the Admissions section of our site for full requirements.

Discover Your Potential


If you are searching for homeschooling activities or looking to try a new hobby during the pandemic, now might be the perfect time to turn your gaze toward the heavens as the weather gets warmer. From planets and stars to galaxies and the cultural importance of the night sky, there’s a fascinating universe waiting to be explored.

Patrick Gunning

Professor Patrick Gunning, a medicinal chemistry researcher at the University of Toronto Mississauga, whose novel methods may significantly improve how we treat the deadliest types of cancer, has made 2017's list of Canada’s Top 40 Under 40.

Paul Ashwell

Something unexpected is happening at U of T Mississauga. The ground has started to rumble with increasing frequency, shaking buildings, rattling desks and leading to mounting concern and confusion.

Student Experience

Courses You Would Love


This course explores the astrophysics of planets, Sun and stars, including their observed variety, structure, formation and evolution.


The analysis of vibrating systems and wave motion, introducing mathematical techniques such as complex numbers, eigenvalue problems, and Fourier series. Topics include: travelling waves; propagation of electromagnetic waves in materials.

Programming Flag

Structure of computers; the computing environment. Programming in a language such as Python. Program structure: elementary data types, statements, control flow, functions, classes, objects, methods, fields. List: searching, sorting and complexity.

Planning Ahead

Whether you want to land your dream job, conduct groundbreaking research, or start your own business, we can get you there. Here are resources to help you explore your career options.

Career Options

Created by our Career Centre, the Careers by Major database identifies some potential career fields, how to gain related skills and experience, and useful resources and job samples. But always remember, your program of study doesn't have to determine your career!

Program Plans

Program Plans are quick and accessible overviews of the many academic and co-curricular opportunities available to help you get the most out of your UTM experience.

Tip Sheets

The Career Centre offers dozens of tip sheets with helpful information about topics related to searching for work, planning your career, and pursuing further education.

View to the U: An eye on UTM research

View to the U is a podcast that features U of T Mississauga faculty members from a range of disciplines who will illuminate some of the inner-workings of the science labs and enlighten the social sciences and humanities hubs at UTM.

Kent Moore

On this episode, Professor Kent Moore talks about his research, which investigates climate change, using theoretical, computational, and observational techniques to understand the dynamics of the climate system, and he also studies the impact that weather has on human physiology and performance.

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