factors that affect apparent brightness (such as stellar masses, age, stage) ] Disciplinary Core Ideas ESS1 A: The Universe and its Stars • The sun is a star that
Part Brightness of the Stars
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
hr diagram ws key
Cepheid variable: Star whose luminosity varies in a characteristic way, with a Doppler Effect: Apparent change in wavelength of the radiation from a source During inflation, the universe swelled in size by a factor of 10 to the 50th power
glossary
Scienfific Finding: The number of stars only a small effect on the brightness of a star as seen from Earth Therefore, we will assume this factor does not affect the
Brightness of Stars Student Worksheet Packet
o 30 min - Exploring How Actual Brightness Affects Brightness from Earth o 45 min - Exploring How Number of Stars in a System Affects Brightness from Earth the brightness from Earth must not depend on just one of these factors, but a
Star Gazing Lesson Plan
Stars are made up entirely of gas How does apparent brightness depend on How do we determine chemical composition? decreased by a factor of 10
lecture
composition, and brightness Stars vary in their chemical composition Astronomers use spectrographs to determine the elements found in stars A spectrograph
Characteristics of Stars
What factor affects the luminosity of a star? 3 What is the approximate surface temperature of the sun? 4 Is the surface temperature of white dwarf stars higher or
stars booklet
-ACTIVITY HOW DOES LOCATION AFFECT THE BRIGHTNESS OF STARS? factors that affect apparent brightness (such as stellar masses age stage) ]
Brightness variations of Sun-like stars are driven by many factors including granulation12 oscillations11 rotation and magnetic activity13
How bright a star looks to us is determined by its flux not its luminosity Brightness = Flux Page 6 Flux and luminosity • Flux decreases as
22 sept 2015 · 2 5 factors of brightness ? ? We can compare the brightness (flux) of stars 1 and 2 by forming a ratio and calculate magnitude difference
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?
of stars Assessment does not include other factors that affect apparent brightness (such as stellar masses age stage) ] The performance expectation above
But a plot of Luminosity vs color (or spectral type the 19th century we can determine the sizes of stars • Stephan's Law same factor
sky and reducing the contrast to a point where stars are lost in urban the brightness of the faintest star one only factor affecting an LM meas-
[PDF] Part 2 - Brightness of the Stars