http://www.reddit.com/user/plom615
plom6152 karma2014-05-01 16:54:43 UTC
How do you determine how far away a celestial body is?
I mean, we know approximately how far away other stars and galaxies are. How did humans figure it out (relatively) accurately?
Sorry if this was asked already.. and thanks!
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plom6152 karma
How do you determine how far away a celestial body is?
I mean, we know approximately how far away other stars and galaxies are. How did humans figure it out (relatively) accurately?
Sorry if this was asked already.. and thanks!
View HistoryShare Link