Explanation H-R diagrams are plots of luminosities versus surface temperature and by comparing luminosity that is how dim the star looks, scientists calculate how far the star is. Absolute magnitude depends on luminosity and distance of star. Absolute magnitude is the measure of luminosity of star and is in inverse relation with it. It means, the star of lower magnitude is more luminous than star of higher magnitude. Luminosity is the total energy emitted by the star per second. It depends on the temperature and radius of the star. It is directly proportional to the square of radius and fourth power of temperature of star...

Lecture- Tutorials for Introductory Astronomy

3rd Edition

ISBN: 9780321820464

Author: Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden

Publisher: Addison-Wesley

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Chapter 5, Problem 5HRP

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Whether stars with the same luminosity have the same absolute magnitude number. Use a pair of stars from answer to Question 4 to support the answer.

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Chapter 5, Problem 4HRP

Chapter 5, Problem 6HRP

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Chapter 5 Solutions

Lecture- Tutorials for Introductory Astronomy

Ch. 5 - Prob. 1HRP Ch. 5 - Prob. 2HRP Ch. 5 - Prob. 3HRP Ch. 5 - Prob. 4HRP Ch. 5 - Prob. 5HRP Ch. 5 - Prob. 6HRP Ch. 5 - Stars of the same spectral type have the same...Ch. 5 - Prob. 8HRP Ch. 5 - Prob. 9HRP Ch. 5 - Prob. 1STP

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