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Bachelor of Science

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Astronomy is the study of the properties and evolutionary processes of the universe. UA astronomers investigate the early universe, galaxies, quasars, and the formation and evolution of the stars and solar system. Ongoing areas of investigation at the university's Steward Observatory include extragalactic astronomy, galactic and stellar astronomy, solar system studies, and theoretical astrophysics. The program concentrates on physics and math; many astronomy majors also earn a physics degree. Its emphasis on the physical sciences makes this degree one of the most demanding at the university.

Major Details

College: College of Science
Admissions Requirements:

No Additional Requirements

Math Required:


    This strand involves skill and facility with calculus. The S-strand begins at one of two calculus options - MATH 124 (Calculus I with Applications) or MATH 125 (Calculus I). Students who successfully complete the S-strand may continue on to MATH 129 (Calculus II), MATH 223 (Vector Calculus), or beyond. Those who choose but are not ready to begin the S-strand will be required to take preparatory work.
Second Language Required:

2 Semesters

  • Scoring the equivalent of second-semester skill level on an entrance or placement examination administered by The University of Arizona.
  • Completion with a C or better of a second semester course at the post-secondary level.
  • An AP (Advanced Placement), IB (International Baccalaureate) or CLEP (College Level Entrance Program) language score determined by the individual language department.
  • In the College of Engineering by a method determined within the College; however, all students in the college must also take a language placement examination on entrance to the University.
2 Semesters
Fees: No
Pre-Major: No

Four-Year Plan

Archived plans are available on Degree Search 2011-2017 for many degree plans. These are sample plans. Please work with your academic advisor for more specific and up-to-date requirements.

Select a year:

UA Course Requirements Units
1st Semester
ENGL 101 First-Year Composition 3
Tier I General Education 3
Math - Calc I 3
Tier I General Education 3
ASTR 196 Astro Major Seminar (optional) 1
Programming Course - CSC 110 4
2nd Semester
PHYS 141/161H Intro Mechanics 4
ENGL 102 First-Year Composition 3
MATH 129 Calculus II 3
Tier I General Education 3
Tier I General Education 3
3rd Semester
ASTR 250 Fundamentals of Astronomy 3
MATH 223 Vector Calculus 4
PHYS 142/162H Intro Thermo. & Optics 4
Second Language 3
4th Semester
ASTR 296A Research Seminar (odd years) (optional) 1
MATH 254 Differential Equations 3
PHYS 241/261H Intro Electricity & Magnetism 4
PHYS 263H Relativity & Quantum 3
Second Language 3
5th Semester
ASTR 300A Astrophysics I: Mechanics 3
PHYS 204 Math Techniques in Phys 3
PHYS 321 Theoretical Mechanics 3
Tier II General Education 3
Tier II General Education 3
6th Semester
ASTR 300B Astrophysics II: Radiation & Matter 3
ASTR 302 Observational Astronomy 3
PHYS 331 E&M 3
PHYS 371 Quantum Theory I 3
ASTR 49X Research 1
Tier II General Education 3
7th Semester
ASTR 400A Theoretical Astrophysics I: Stellar 3
PHYS 305 Computational Physics 3
Elective 3
ASTR 49X Research 1
UD Elective 3
Elective 3
8th Semester
ASTR 400B Theoretical Astrophysics II: Galaxies 3
PHYS 426 Thermal Physics 3
ASTR 49X Research 1
UD Elective 3
Elective 3
UD Elective 3

AZ Transfer Pathways

This page is designed for in-state transfer students who plan to attend the University of Arizona. The information presented lists the most accurate course equivalencies and may not include all possible requirements. Transfer students are strongly encouraged to use this site for reference only and not for self-advising.

Transfer students should work with their community colleges and UA advisors to develop an individualized plan for transfer, and visit

  • All posted Pathways (except for Bachelor of Applied Science Pathways) fulfill an AGEC and most also fulfill an Associate Degree
  • Following a Pathway does not guarantee admission to the UA nor admission to a college/major/program at the UA
  • Use Pathways in consultation with advisors from your community college and the UA
  • Pathways are subject to change at any time

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