In the scientific classification of stars, what type of star is Proxima Centauri?

Proxima Centauri is classified as a dwarf star, specifically as a red dwarf. This means it is a small and relatively cool star compared to larger stars like our Sun. Dwarf stars make up the majority of the stars in the universe, and red dwarfs are the most common type among them.

The classification of stars is based on their size, luminosity, and temperature. Dwarf stars, such as Proxima Centauri, are characterized by their lower mass and brightness. They undergo nuclear fusion at a slower rate, which is why they have longer lifespans compared to larger stars that may be more luminous.

Understanding this classification helps in the broader context of stellar evolution and the structure of our galaxy. Proxima Centauri, as a dwarf star, also plays a significant role in studies related to exoplanets and the search for life beyond Earth, since it has been found to host at least one Earth-sized planet in its habitable zone.