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How far away are we from the stars we see at night and do they have their own solar systems?

Answer 1

Stars we see are at different distances.The nearest Proxima century is 4.3 light years away,. The brightest star we see Sirius is about 8.3 light years way. Procyon B is about 11 light years away. STar like objects were found even at a distance of 5.5 million light years.

Light travels 300,000 kilometers per second. The light year is the distance light travels in a vacuum. Astronomers have discovered evidence for planets orbiting other stars. More than 2000 of them were detected and 1000 of them were confirmed by astronomers. The Kepler space telescope has detected more than 1000 extra solar planets by transit method.

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Answer 2

Josiah Adams

Most stars have their own solar systems, much like our Sun, and the closest star is Proxima Centauri, which is 4.24 light-years away.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.