Sample Course Sequence for the Major in Astronomy/Planetary Sciences
| Freshman Fall | Credits | Spring | Credits |
| First Year Seminar 101 | 1 | First Year Seminar 102 | 1 |
| D.E.C. A | 3 | D.E.C. A | 3 |
| 1 | PHY 132/PHY 134 or PHY 142 | 4 | |
| PHY 131/PHY 133 or PHY 141 | 4 | MAT 132 or MAT 142 | 4 |
| MAT 131 or MAT 141 | 4 | Elective | 3 |
| D.E.C. | 3 | D.E.C. | 3 |
| Total | 16 | Total | 18 |
| Sophomore Fall | Credits | Spring | Credits |
| PHY 251/PHY 252 | 4 | PHY 306 | 3 |
| MAT 205 or AMS 261 | 3 | MAT 305 or AMS 361 | 3 |
| AST 205 or D.E.C. | 3 | AST 200 | 1 |
| PHY 277 | 3 | AST 203 | 4 |
| D.E.C. | 3 | D.E.C. | 3 |
| Total | 16 | Total | 14 |
| Junior Fall | Credits | Spring | Credits |
| AST 341 or AST 443* | 3-4 | AST 347 or AST 346* | 3 |
| MAT elective | 3 | PHY 308 | 3 |
| PHY 301 | 3 | PHY 300 | 3 |
| PHY 303 | 3 | D.E.C. | 3 |
| D.E.C. or AST 205 | 3 | Upper-Division elective | 3 |
| Total | 15-16 | Total | 15 |
| Senior Fall | Credits | Spring | Credits |
| AST 443 or AST 341* | 3-4 | AST 346 or AST 347* | 3 |
| D.E.C. | 3 | D.E.C. | 3 |
| D.E.C. | 3 | D.E.C. | 3 |
| Elective | 3 | Upper-Division elective | 3 |
| Upper-Division elective | 3 | Elective | 3 |
| Total | 15-16 | Total | 15 |
*AST 341 and AST 443 are offered in alternate fall semesters. AST 346 and 347 are offered in alternate spring semesters.
