Like most of the Rochester physics and astronomy faculty, Dan Watson teaches a wide variety of courses, from large non-science-major classes to tiny advanced graduate tutorials. Also like most of his colleagues, he develops and continuously redevelops a lot of electronic media for his courses. He strongly prefers to leave these materials publically accessible, though he often password-protects homework and exam solutions. If you are an instructor of similar classes and want access to the protected sections, just ask Dan.

Here are links to the most recent versions of his more-presentable course websites.

Animation by Robert Hurt (SSC)

Current or most recent
  Astronomy 241: stellar astrophysics. A course for junior and senior physics and astronomy majors in stellar atmospheres, interiors and evolution, including an introduction to circumstellar accretion disks. Operates more like a tutorial or workshop than a lecture- and textbook-based course, as most of the work involves a great deal of mathematical exposition and numerical simulation.
 
Astronomy 102: black holes, time warps, and the large-scale structure of the Universe. A course on relativity and relativistic astrophysics presented minimally-mathematically, and aimed at non-science majors. All homework and exams are administered on line, using the WeBWorK system.
Astronomy 106: the cosmic origins of life. An account of the evolution of the Universe, the Galaxy, the Solar system, and life and civilization on Earth. Aimed primarily at non-science majors. All homework and exams are administered on line, using the WeBWorK system. 
  Astronomy 111: the Solar system and its origins. Suitable for freshmen but taught at the honors level, this course is an introduction to planetary surfaces, interiors and atmospheres, celestial mechanics and planetary rings, asteroids and comets, protoplanetary disks and planet formation, and exoplanets. Includes nighttime observations with the 24-inch telescope at UR's Mees Observatory. 
  Astronomy 142: elementary astrophysics. A sophomore honors course on the physics of stars, interstellar matter, galaxies, and the large-scale structure of the Universe. Includes nighttime observations with the 24-inch telescope at UR's Mees Observatory.
  Astronomy 203/403: astronomical instruments and techniques. Intended for senior undergraduates and beginning graduate students, this was an advanced class in geometrical and physical optics, interferometry, detectors, noise and the theory of light detection, all applied to astronomical imaging and spectroscopy. It was popular at first, but as opportunities for research in astronomical detectors and instrumentation dwindled in the late 1990s, the course lost its audience, and is on the books only as a reading course now.
  Astronomy 241: stellar astrophysics. A course for junior and senior physics and astronomy majors in stellar atmospheres, interiors and evolution, including an introduction to circumstellar accretion disks. Operates more like a tutorial or workshop than a lecture- and textbook-based course, as most of the work involves a great deal of mathematical exposition and numerical simulation.
  Astronomy 244/444: advanced astrophysics laboratory. This is the astronomy-only version of our Advanced Laboratory, in which challenging observing projects and analyses are carried out using the 24-inch Cassegrain telescope, and its research-grade instrument suite, at Mees Observatory.
  Physics 122: electricity and magnetism for science and engineering majors. Accent on the engineering, in this case.
  Physics 217: electricity and magnetism I. The first semester of our junior-level E&M course for physics and astronomy majors, mostly covering electrostatics and magnetostatics.
  Physics 218: electricity and magnetism II. The second semester of our junior-level E&M course for physics and astronomy majors, covering light, the interaction of light with matter, and the physics of radiating charges, currents and fields. Dan's favorite course.