Stars are classified into different types based on their temperature, color, size, and other characteristics. The classification system used to categorize stars is called the stellar classification or spectral classification. Here are some of the main types of stars:
O-Type Stars: O-type stars are the hottest and brightest stars, with temperatures over 30,000 Kelvin. They appear bluish-white in color and are relatively rare. O-type stars are massive and short-lived, often undergoing supernova explosions at the end of their lives.
B-Type Stars: B-type stars are also hot and bright, with temperatures ranging from 10,000 to 30,000 Kelvin. They have a blue-white color and are more common than O-type stars. B-type stars are massive and relatively short-lived.
A-Type Stars: A-type stars have temperatures ranging from 7,500 to 10,000 Kelvin. They appear white or bluish-white in color and are notable for their strong hydrogen absorption lines in their spectra. A-type stars are smaller and less massive than O and B-type stars.
F-Type Stars: F-type stars have temperatures ranging from 6,000 to 7,500 Kelvin. They appear yellow-white in color and are larger and more massive than A-type stars. F-type stars are known for their characteristic hydrogen absorption lines.
