Are any of the stars in the night sky actually galaxies?

Answer 1

No it is possible for one to get confused between stars and planets but galaxies look like nebulae and never look like stars.

It is only recently—less than a century—that we have come to understand that galaxies are collections of stars. Three galaxies can be seen with the naked eye: the Andromeda Nebula (M31), the Large Magellenic Cloud, and the Small Magellenic Cloud. As their names suggest, these galaxies resemble nebulae or clouds. Therefore, it is impossible for galaxies to be confused with stars, though faint comets may appear to be galaxies but are not.

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Answer 2

Hazel Asher

Yes, some of the stars visible in the night sky are actually galaxies. These galaxies appear as faint, fuzzy patches of light and can be seen with the naked eye or with telescopes.

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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.