Labels:text | electronics | screenshot | display | software | operating system | web page | website | computer icon OCR: STELLAR CLASSIFICATION STARS ARE classified according to their spectral characteristics. A star's CLICK ON THE LETTERS "A" AND spectrum is obtained by separating its "M" TO SEE OTHER radiation into components that show TYPES OF STARS the intensity of radiation of different The Sun wavelengths. This information is used to deduce the star's temperature, Rigel color, and chemical makeup. There are seven main spectral types, each known by a letter of the alphabet. Each type B AFGKM has subclasses numbered from 0 to 9. RIGEL (TYPE B-8) This blue supergiant has a surface temperature of 12,500℃ (22,600ºF) and a diameter 50 times that of the Sun. SAMPLE STAR SPECTRUM Each dark line indicates that radiation of a specific wavelength is being absorbed by a specific chemical element in the star. STAR ...
