Classification+of+Stars


 * =The main characteristics used to classify stars are size, temperature, and the brightness.=


 * Size:**


 * Many stars are usually the size of the Sun: medium sized.
 * Some stars are much larger than the Sun which are called "giant stars".
 * Some are smaller than the Sun. For example, the white dwarf is about the size of Earth.
 * Temperature:**
 * A star's color reveals it's temperature. [[image:http://www.as.utexas.edu/~kurtis/images/space_pics/m35_bright.jpg width="165" height="125" align="right" caption="Red stars mean it's cool"]]
 * The coolest stars are reddish in the sky.
 * The hottest stars are blueer than the sky.


 * Brightness:**
 * The brightness of the star depends on it's size and temperature.
 * A very large star shines brightly.
 * A star's brightness is described in 2 different way.