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If a star is receding

Given the following images, choose the one that most likely represents an O-class star.Star A is a yellow star. Star B is a blue
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2. asked by Oscar
3. 4,468 views
A distant galaxy is simultaneously rotating and receding from the earth. As the drawing shows, the galactic center is receding
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2. asked by Anonymous
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which of the following can help astronomers detect if a star is part of a binary star systemA. the star varies temperatures near
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2. asked by ♡school lover♡
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In general, the narrower the spectral line of a starA.the hotter the star is B.the bigger the star is C.the denser the star is
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2. asked by Liz
3. 1,521 views
What determines whether a star will end its life cycle as a black hole or neutron star or as a white dwarf?(1 point) Responses
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2. asked by wiggle
3. 263 views
The current stage of life of a star is found through a combination of what following characteristics of the star?A. Size (or
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2. 34 views
In general, the narrower the spectral line of a starA.the hotter the star is B.the bigger the star is C.the denser the star is
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2. asked by Liz
3. 961 views
If a star is receding (moving away from us) at a speed of 1.8% of the speed of light, at what wavelength would a spectral line
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2. asked by Xenon
3. 685 views
A galaxy is receding from us at 27,000 km/s. What is the percentage of the speed of light the galaxy is receding from us?
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2. asked by Mark
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Two stars are identified on the Hertzsprung-Russell diagram below.Based on this diagram, how do the characteristics of Star 1
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2. 96 views