[PDF] Part 2 - Brightness of the Stars
In other words, what other factors besides a stars luminosity (how much light a star releases) could affect the stars apparent magnitude (how bright the star appears
[PDF] absolute brightness: The apparent brightness a star would have if it
blue giant: Large, hot, bright star at the upper left end of the main sequence on the compression once they are squeezed to the point where quantum effects During inflation, the universe swelled in size by a factor of 10 to the 50th power
[PDF] 11_hr_diagram_ws_keypdf
10,000 Temperature (K) Answer the questions using the above HR Diagram 1 What factor affects the color of a star? Temp 2 What factor affects the luminosity
[PDF] Lesson Plan: Star Gazing
Teacher Prep Time: 10 minutes (1 hour if you need to print and laminate star cards ) o 45 min - Exploring How Number of Stars in a System Affects Brightness the brightness from Earth must not depend on just one of these factors, but a
[PDF] Star Gazing
, number of stars, or distance from Earth? • What data would you need to get to show how each of these factors affect the brightness from Earth?
[PDF] Chapter 16--Properties of Stars
We begin by investigating how to determine a star's luminosity, surface factor of 100 in brightness, a single magnitude corresponds to a factor of (100)1/5
[PDF] Characteristics of Stars - Atlanta Public Schools
composition, and brightness Stars vary in their chemical composition Astronomers use spectrographs to determine the elements found in stars A spectrograph
[PDF] Astr 102 Lec 6: Basic Properties of Stars - Faculty Washington
measure? • How do we determine chemical composition? To get the total luminosity, multiply the surface brightness by the number of squares not mean the star is brighter overall • Luminosity is brightness decreased by a factor of 10
[PDF] 20 Stars/Distances/Magnitudes
How does distance affect its brightness Distance it takes light to travel in 1 Earth year • Speed of light (c) = 3 x As the distance to a star increases, what happens to its parallax angle? magnitude defined: 5 magnitudes separated by factor
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