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Dibs Fall 2026

EPS SCI 9

Solar System and Planets

Lecture, three hours; discussion, one hour. Properties of sun, planets, asteroids, and comets. Astronomical observations relevant to understanding solar system and its origin. Dynamical problems, including examination of fallacious hypotheses. Meteoritic evidence regarding earliest history of solar system. Chemical models of solar nebula. Space exploration and its planning. P/NP or letter grading.

Course statistics

Predicted GPA
3.73
n = 2,070 · 11 terms · ± 0.012
A range
82%
of letter grades
Taken P/NP
4%
94% of those passed
D / F / W
1.7%
incl. withdrawals

Sections in Fall 2026

Sections offered, with live enrollment and predicted GPA
Section Status Enrolled Seat risk Meets Instructor Predicted GPA
Lec 1 Closed
159 of 159
100% full
 fills MW 2:00pm-3:15pm Young, E.D.
3.85n=814 · this instructor

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.

  • 27721F
  • 14922S
  • 20622F
  • 42323W
  • 26323F
  • 35824F
  • 17425S
Enrolment by term: 21F 277, 22S 149, 22F 206, 23W 423, 23F 263, 24F 358, 25S 174
Peak 423 Most recent 174 in 25S 7 terms on record

Grade distribution

  • A+ 960 · 44.3%
  • A 577 · 26.6%
  • A- 160 · 7.4%
  • B+ 117 · 5.4%
  • B 98 · 4.5%
  • B- 46 · 2.1%
  • C+ 37 · 1.7%
  • C 28 · 1.3%
  • C- 13 · 0.6%
  • D+ 7 · 0.3%
  • D 12 · 0.6%
  • D- 3 · 0.1%
  • F 12 · 0.6%
  • P 82 · 3.8%
  • NP 5 · 0.2%
  • I 8 · 0.4%
  • DR 1 · 0.0%

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
YOUNG, EDWARD DONALD 3.85 3.85 814 3 89%
JEWITT, DAVID CLIFFORD 3.58 3.58 408 1 73%
SCHLICHTING, HILKE ELISABETH 3.88 3.88 267 1 94%
DAY, MACKENZIE DENALI 3.53 3.51 212 1 68%
MAINZER, AMY 3.72 3.72 161 1 80%
KAVNER, ABBY 3.89 3.91 144 1 93%
RUBIN, ALAN E 3.10 2.97 64 3 30%

“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