AstroLabWeek10 - Objectives: Stars have a number of...

School Pennsylvania State University
Course Title ASTRO 11
Type
Lab Report
Uploaded By GeneW
Pages 3

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Objectives: Stars have a number of properties which, at first glance, may appear to be unrelated. Butrelated after all. Two astronomers, independently of each other, plotted the luminosities of a number ofcreate what is now known as the "Hertzsprung-Russell", or "H-R" diagram (named after the scientists wstudy this relationship between properties.In this lab, you will find that for the majority of stars there is a definite relationship between temperaturethat other properties of stars are also related. In fact, the H-R diagram contains a surprisingly large am

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Term

Spring

Professor

WANG

Tags

1 0 M, Stellar classification, 1 0 L, H R Diagram

Unformatted text preview: I. Plotting and understanding the H-R diagram In the two tables and graph that follow, Temperatures are in Kelvins (K), and Luminosities and Masses the units are called: "Solar Luminosities" and "Solar Masses" respectively, which are abbreviated as L ☉ Sun in these units are 1.0 L ☉ and 1.0 M ☉ by definition. You may ignore the column "Spectral Type" in th First is a list of the 25 nearest stars in the sky , starting with the nearest: S ubmit S ave and Continue Later...
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