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mariasmakatof mariasmakatof
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2 months ago

What does a spectroscopic binary show periodic variations in?



brightness



motion perpendicular to the line of sight



motion along the line of sight



spectral type

Textbook 
ASTRO

ASTRO


Edition: 3rd
Authors:
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majudomminickmajudomminick
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2 months ago
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mariasmakatof Author
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2 months ago
Brilliant
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Yesterday
Thank you, thank you, thank you!
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2 hours ago
this is exactly what I needed
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