Spectral Type (Classifying Stars by their Temperature)
Автор: Josh Bloom
Загружено: 2021-06-06
Просмотров: 901
Have you ever noticed that not all stars in the night sky are the same color? Some are more yellow-orange while others are more blue. Why is this? The only difference between one star and another you can actually tell with the naked eye is its temperature - and that is revealed by its color! For over a century, astronomers have used a classification system that assigns a letter to different types of star based on their temperature - called the star's "spectral type" or "spectral class". This video gives a non-mathematical introduction to what that term actually means, and how it works!
Josh Bloom teaches high school Physics and Astrophysics at Palo Alto High School in California.
Image credits:
https://skyandtelescope.org/observing...
https://www.universetoday.com/24640/c...
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