2.8 Astro 1 - Astro 1 Section 1 Professor Brandt Monday...

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Astro 1 Section 1 Professor Brandt Monday February 8th 1999 Announcements: Lecture notes: Class 13 Cassopeia - M shaped constellation formed by 5 bright stars - Ethiopian queen - wife of Cepheus - Circumpolar Pegasus - the winged horse Andromeda - daughter of Cepheus and Cassiopeia - Cassiopeia boasted about Andromeda's beauty - Angered sea Nymphs and they sent a whale to ravage Ethiopia's coasts - Perseus freed Andromeda married her and flew off on Pegasus Contains Andromeda Galaxy - M31 - nearest large galaxy to ours. Today we'll talk about the overall characteristics of the stars. We'll focus on 2 characteristics in particular temperature luminosity - How much light made. These are two of the most simple and basic characteristics of a star but together they do a good job of characterizing almost any star in the sky. We talked about temperature before. Two ways to get it. Color - hotter is bluer cooler is redder. Spectral pattern of absorption lines.
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  • Spring '99
  • Brandt
  • Astronomy, main sequence, Arcturus, Hertzsprung

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