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How can you tell that some stars are relatively close to us in the sky?
Wiki User
∙ 13y ago
If a star has some parallax - if its position against the background stars appears to be a teeny bit different in January than in July - then we know it's pretty close, and we can calculate precisely how far away it is.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoYou can determine the distance to a star using the distance modulus equation.
M = m+5-5log10(d)
OR
m = M-5+5log10(d)
M = Absolute magnitude
m = Apparent magnitude
d = Distance in parsecs
Wiki User
∙ 14y agoIf you count it in light years... NO! It would take more than 2,000 years to get from one star to the other!
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How can you tell if two numbers are relatively prime?
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