ocr: DWARF Ar main sequence star in the H-R diagram, for example, our own Sun. Dwarts are in the luminosity class V. Stars below dwarts are divided into red dwarts, subdwarts, and white dwarts. Above are giants. Luminosity class describes the absolute brightness, or magnitude, of a star. The classes are marked with Roman numerals J- VII. Luminosily classes: Jincludes supergionts Ilincludes bright giants IIIi includes giants IVi includes subgiants Vi includes main sequence sfars (dwarts) VI includes subdwarts VII includes white dwarts When stars are classitied by their properties, the spectral class ...
