Скачать или смотреть Stellar Classification - 8a - Intro to Astronomy Sessions

How astronomers can use the strengths of different spectral lines in the light from a star to determine the spectral type/temperature, without being affected by the phenomena of interstellar reddening.

You can access data from the Sloan Digital Sky Survey here: https://skyserver.sdss.org

Full Series Playlist:    • Intro to Astronomy Sessions  

Please note that this was designed as an introductory survey of astronomy course, mostly for non-science majors, and does simplify many of the topics accordingly. I encourage people who are just getting into astronomy to use this as a jumping off point for more in depth studies. I've tried to edit out specific references to my course (regarding assignments, tests, etc.) but I might have missed some. Finally, scientific fields are constantly advancing, with new data and studies resulting in our ideas being continually improved. This means some of the ideas presented here may soon be out of date, so I again encourage people to continue to investigate whichever topics are of particular interest to you.

Opening Image Credit: https://www.nasa.gov/feature/goddard/...