[PDF] absolute brightness: The apparent brightness a star would have if it PDF glossary.pdf

blue giant: Large, hot, bright star at the upper left end of the main sequence on model rests on three ideas: that there is a state of lowest energy, that there is 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

factors that affect apparent brightness (such as stellar masses, age, stage) ] dimmer stars became magnitude 2, magnitude 3, magnitude 4, etc for dimmer

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Temp 2 What factor affects the luminosity of a star? Diameter (sie) Temp 3 What is the approximate surface temperature of the sun? 6000K 4 is the surface

[PDF] absolute brightness: The apparent brightness a star would have if it

[PDF] Lesson Plan: Star Gazing

Part 3: o 30 min - Exploring How Distance Affects Brightness from Earth Through guided inquiry, students will discover that a star's brightness from Earth is a the brightness from Earth must not depend on just one of these factors, but a

[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

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brightness to compare stars as to which are truly bright or faint, since stars are at different distances from the Earth eliminate the distance factor when assigning magnitudes Determine the distance of the star by measuring its parallax 3

[PDF] Chapter 16--Properties of Stars

We begin by investigating how to determine a star's luminosity, surface Sun and Alpha Centauri A (the brightest of three stars in the Alpha Centauri system) factor of 100 in brightness, a single magnitude corresponds to a factor of (100) 1/5

[PDF] PHYS 390 Lecture 3 - Stellar luminosities 3 - 1 Lecture 3 - Stellar

If one can determine the luminosity of a star WITHOUT knowing d, then a the modern definition of m, a difference of 5 magnitudes is assigned to a factor of 100

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[PDF] [PDF] absolute brightness: The apparent brightness a star would have if it