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ASTR Final Chapter10

final review

QuestionAnswer
Radius of Sun 7 x 10^5 Km
Mass of Sun 2 x 10^30 Kg
Temp of Surface of Sun 6000K
Temp of Core of Sun 15 Million K
Composition of Sun 71% Hydrogen, 27% Helium, 2% Heavier Elements
Source of Heat/Energy Nuclear Fusion
Power Output of Sun 4 x 10^26 Watts
Atmospheric Layers of Sun Photosphere, Chromosphere, Corona
Distance from Earth 1 AU (150 Million km or 93 Million Miles)
Average Rotation Period of Sun 29 Days
Types of Heat Transfer Conduction (Solid), Convection (fluid (gas/liquid)), Radiation
What is Sun made up of? Plasma
Inner Structure of Sun Core (15 Mil K), Radiation Zone (Million K), Convection Zone (100,000 K)
What are Prominences? Hot rising gas in the chromosphere constrained by magnetic field
What is a solar flare? Huge eruption of hot gas and radiation into the photosphere.
What is solar wind? A continuous out-flow of charged particles from the sun, mostly in the form of protons and electrons
How long has the sun been around? 4.6 Million years
Source of Suns energy? Nuclear Fusion of hydrogen to helium in the central core
What is a sunspot? Cooler area in the photosphere
Created by: pdoss94
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