Do we call other stars "suns," or is that just the name we gave to our star in our solar system?

Although it's also common to refer to an exoplanet's sun as a planet, we tend to use the word sun for our star and the word star for others.

Since most stars have multiple names and our Sun has no official name, it can get rather confusing. When referring to our Sun, some people capitalize the word "sun" to make it a proper noun.

In addition to their official names, stars can also go by other names that denote their constellation. For instance, the star Rigel in the constellation Orion is also referred to as Beta Orionis.

The fact that there are multiple star catalogues and that a star may have a different name in each adds to the complexity.

The term "sun" is often used colloquially to refer to any star that is the center of its own solar system. However, in a scientific context, "sun" specifically refers to the star at the center of our solar system, which we commonly call the Sun. Other stars are typically referred to by their specific names or catalog numbers.