Also known as orange dwarfs, these stars appear orange in color, but, like most stars, are white. They are similar to Sol in many respects: similar radiation output and similar behavior. Luminosity of such stars is roughly between 10% and 50% of that generated by our sun, their light output spectrum is ample across the visible spectra, but the blue component is weaker than that of Sol. Unlike M - type stars, they tend not to give off such powerful flares and are expected to have sunspots similar in size to those of our sun.