The public video lectures cover just the astronomy content from the Astronomy Notes textbook. The public lectures do not include the material that is for the astronomy class such as how to use the class Canvas, lecture outlines in the Student Guide, exam review documents, etc. Students in the Bakersfield College astronomy classes should use the astronomy class lecture videos posted in the class Canvas to get that class-specific content.
This video set covers the other galaxies, galaxy clusters, and active galaxies. The video lectures are grouped together in the Galaxies Public YouTube playlist. Here are the individual videos for galaxies:
Video 1: (for first ten webpages) This video is about the other galaxies in the universe. The video starts off with how we determined the spiral nebulae were separate galaxies outside of the Milky Way by measuring their distances. Then it covers the Hubble-Lemaître Law of the universe’s expansion. After that it covers the three basic types of galaxies (ellipticals, spirals, irregulars) and then galaxy clusters, superclusters, and galaxy collisions and mergers. First lecture for chapter 15 of Astronomy Notes.
Video 2: (for webpages #12, #13, and #14) This video is about the active galaxies: quasars, Seyfert galaxies, and radio galaxies. It covers the unifying model of a supermassive black hole at the center of galaxies producing the huge amounts of radiation from the accretion disk surrounding the black hole. It ends with the Hubble Ultra Deep Field and how the universe has changed over time. Second lecture for chapter 15 of Astronomy Notes.
last updated: June 28, 2022