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Is every star a sun? Is every star a different galaxy?

Answer 1

Sun is an average star in a galaxy known as milky way.

There are about 200 _ 400 billion stars in milky way galaxy.
Galaxy is a huge group of stars, dust, gas clouds etc orbiting a r massive black hole..There are billions of such galaxies in this universe.
Sun is a star..all stars are like Sun but some may be larger or smaller.
Mily way galaxy is about 100,000 light years in size stars are different in size, age, temperature etc..

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Answer 2

Claire Anctil

A star is not always a sun. A sun is a particular kind of star, the star at the center of our solar system. A star is usually a member of a single galaxy, though there are instances in which a star can be a part of more than one galaxy.

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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.