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2 answers
16 votes
2k views
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How many galaxies have been discovered?
2 answers
8 votes
2k views
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Why you use log to measure metallicity in galaxies?
1 answers
5 votes
849 views
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Astronomy Olympiad Books
2 answers
4 votes
2k views
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Stellar mass of galaxies
1 answers
3 votes
104 views
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speed of light measurement
2 answers
3 votes
896 views
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What is the axial tilt of a planet measured relative to?
1 answers
2 votes
100 views
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Where can I learn these Astrophysical techniques? [Read below]
2 answers
1 votes
925 views
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How do astronomers estimate the total mass of dust in clouds and galaxies?