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For near-by stars, the parallax method is used - the star changes its apparent position due to Earth's movement around the Sun.
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∙ 12y ago
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How scientists determine the distance of stars million light years away from earth?
i know astronomers use paralax for stars thay know by red shift if ther moveing away and blue shift if coming closer may some galaxies are so far there lite wont reach us
Do scientists measure a stars distance from earth in meters?
No, they are much too far away, and you would have a number too large to be usable.
Are stars far away or close to the solar system?
stars are pretty far away from the solar system
Why are stars so far away?
i think stars are so far because there in space
Why are stars so small in the sky?
The stars only appear small because they are extremely far away. The stars are in fact enormous.
Are stars far away?
Yes. Very, very, very far away. The Sun is about 90 million miles away. Other stars are millions of millions of miles away.
How close does mercury does it get to the sun?
As Mercury is so far away, scientists do not really know, so no one knows really!
Where are stars?
Long long ago, in a galaxy far far away.
Are stars little?
No. The stars are enormous, far larger than Earth. They only appear far because they are unimaginably far away.
What is the importance of variable stars in determining the size and shape of your Galaxy?
It's difficult to know exactly how far away a star is. We can't go there and measure it, for example. And different sized stars all have different brightnesses, so we can't always go by the brightness, either. Some bright stars are close; some bright stars are just bright, but far away. There's a special class of stars called "Cephid Variables" whose brightness slowly changes. And we know (or at least, we THINK we know) that we can use the periodicity of the change to calculate the mass of the star - and if we know the mass, we know how bright the star really is. And if we know what its actual brightness is, we can measure the observed brightness, and figure out how far away the star must be.
How many stars are there in the universe and how far away are they?
unkown
How far away are stars apart?
sssex minutes
