Algol A is classified as which type of star?

Algol A is classified as a B-type star. B-type stars are known for their significant temperatures, often ranging from about 10,000 to 30,000 Kelvin, leading to strong blue-white coloration. They also possess considerable luminosity and are relatively young, typically found in the early stages of stellar evolution. Algol A specifically is a well-known example of a B-type star within a binary system, showcasing deep insights into stellar dynamics and evolution.

The classification of stars is based on their temperature and spectral characteristics. A-type stars are typically cooler than B-type stars, and G-type stars, such as our Sun, are even cooler than A-type. K-type stars are cooler still, with even lower temperatures than G-type stars. Hence, its classification as a B-type star underlines its distinct properties, including high surface temperatures and blue spectral characteristics, setting it apart from those of other classifications.