HR Diagrams.docx - HR Diagrams Background Information Read...

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HR DiagramsBackground InformationRead through the background sections onSpectralClassification,Luminosity, andtheHertzsprung-Russell Diagram. Then complete the following:1.The table below summarizes the relationship between spectral type, temperature, andcolor for stars.Use the background readings and associated interactives to complete theempty portions of the table. (The interactive at the bottom of theSpectral Classificationpage will be most useful.)StarSurface Temp(K)Spectral TypeColorBetelguese3950M2RedArcturus4,300K2OrangeThe Sun5800G2YellowProcyon A6530F5Yellow-WhiteSirius A9940A1WhiteRigel A11,000B8BlueDelta Orionis30000O9Bright Blue2.Complete the following table related to stellar luminosities in solar units using theequation. If you like, you can use theStellar Luminosity Calculator.Radius (R)Temperature (T)Luminosity (L)111121631911/21/16NAAP – HR Diagram Explorer 1/3
3.The mass luminosity relationdescribes the mathematical relationship betweenluminosity and mass for main sequence stars.It describes how a star with a mass of2 Mwould have a luminosity of[11.3] L

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Term
Spring
Professor
Andrew VandenHeuvel
Tags
Sirius, Stellar classification, 2 m, Delta Orionis, 3 160 L

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