ASTR 81
Fundamentals of Astrophysics
Course statistics
- Predicted GPA
- 3.05
- n = 152 · 4 terms · ± 0.043
- A range
- 33%
- of letter grades
- Taken P/NP
- 4%
- 100% of those passed
- D / F / W
- 4.6%
- incl. withdrawals
Sections in Fall 2026
Not offered in Fall 2026.
Enrollment history
Final enrollment per term, averaged across that term's sections. Four years deep, summer excluded. Per-section live curves are on each section page.
- 5022W
- 3722F
- 3523F
- 3624F
Peak 50
Most recent
36
in 24F
4 terms on record
Grade distribution
- A+ 11 · 7.0%
- A 17 · 10.8%
- A- 22 · 13.9%
- B+ 21 · 13.3%
- B 30 · 19.0%
- B- 17 · 10.8%
- C+ 11 · 7.0%
- C 11 · 7.0%
- C- 5 · 3.2%
- D 7 · 4.4%
- P 6 · 3.8%
Grey bars are non-letter outcomes — P/NP, S/U, incompletes. They are excluded from the GPA entirely rather than scored, because counting a P as a 4.0 would be a fabrication.
By instructor
| Instructor | Predicted | Raw | n | Terms | A range |
|---|---|---|---|---|---|
| GHEZ, ANDREA M | 2.95 | 2.94 | 120 | 3 | 27% |
| CIURLO, ANNA | 3.30 | 3.40 | 32 | 1 | 56% |
“Predicted” is shrunk toward the course average, which is itself shrunk toward the department — so an instructor with a handful of students sits near the course mean rather than topping the list.
By term
- 22W 2.73 n=48
- 22F 3.07 n=36
- 23F 3.40 n=32
- 24F 3.08 n=36