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Chapter 9: The Sun

by: Ashley Notetaker

Chapter 9: The Sun 41087 - AST 115 - A

Ashley Notetaker
Basic Astronomy
Robert S Patterson

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About this Document

There isn't a lot of notes for this chapter. But the few that there are, are very important. Here are the key principles about the Sun.
Basic Astronomy
Robert S Patterson
75 ?




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This 2 page Bundle was uploaded by Ashley Notetaker on Sunday November 1, 2015. The Bundle belongs to 41087 - AST 115 - A at Missouri State University taught by Robert S Patterson in Fall 2015. Since its upload, it has received 24 views. For similar materials see Basic Astronomy in Physics 2 at Missouri State University.

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Date Created: 11/01/15
Chapter 9 The Sun Physical Properties Diameter About 1 million Mass About 13 of 1 million Earths About 1000 Jupiters Avg Density 14 gcmquot3 Temp Surface 6000 K 11000 F Center 156 million K 40 mil F Composition Mostly H gas Plasma a mixture of ions amp electrons Luminosity Total energy emittedsec 4 X 10quot33 ergsec erg unit of energy 1 fly 1 erg 4 X 10quot26 W Energy released in 10 hrs 4 X 10quot24 KWH enough E to run SPF for 1 mil bi years Features of the Sun Atmosphere 1 Photosphere Surface of the Sun about 6000k 2 Chromosphere Middle layer of the Sun about 4500100000 K 3 Corona Upper layer of the Sun about 100000 1 mil K Phenomena M Spots that are cooler than the rest of the Sun Caused by magnetic fields 4500 K Granulation Blotchy spots from convection Prominence Ajet of hot gas Filament A prominence is silhouette Flare A sudden burst of light energy associated w sunspot groups Coronal Mass Eiection An eruption of plasma into the corona amp beyond


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