Question

if a star is 5 light years away from us are we seeing it presently give reason​

Answer 1

Answer:

Yes, you see the star as it appeared when the light left. This is true of all things, but the phenomenon is far more obvious in outer space due to the vast distances involved.

We can see galaxies millions or even billions of light years away, meaning much has changed in the time it took their light to reach us. It is estimated that roughly 25,000 supernovae have occured in the Andromeda galaxy over the past 2.5 million years, for example, none of which we have yet to see.

Explanation:

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