 The color of a star , as determined by the most intense frequency of the visible light , depends on the temperature of the star 's outer layers , including its photosphere . Besides visible light , stars also emit forms of electromagnetic radiation that are invisible to the human eye . In fact , stellar electromagnetic radiation spans the entire electromagnetic spectrum , from the longest wavelengths of radio waves through infrared , visible light , ultraviolet , to the shortest of X @-@ rays , and gamma rays . From the standpoint of total energy emitted by a star , not all components of stellar electromagnetic radiation are significant , but all frequencies provide insight into the star 's physics . 
 The color of a star , as determined by the most intense frequency of the visible light , <a href='uninflect' title='1'><mark>depends</mark></a> on the temperature of the star <a href='null_genetive' title='2'><mark>'s</mark></a>outer layers , including its photosphere . Besides visible light , stars also emit forms of electromagnetic radiation <a href='null_relcl' title='3'><mark>that</mark></a><a href='drop_aux' title='4'><mark>are</mark></a>invisible to the human eye . In fact , stellar electromagnetic radiation <a href='uninflect' title='5'><mark>spans</mark></a> the entire electromagnetic spectrum , from the longest wavelengths of radio waves through infrared , visible light , ultraviolet , to the shortest of X @-@ rays , and gamma rays . From the standpoint of total energy emitted by a star , not all components of stellar electromagnetic radiation <a href='drop_aux' title='6'><mark>are</mark></a>significant , but all frequencies provide insight into the star <a href='null_genetive' title='7'><mark>'s</mark></a>physics . 
Da color of a star , as determined by the most intense frequency of the visible light , depend on tdatemperature of the star  outer layers , including its photosphere . Besides visible light , stars also emit forms of electromagnetic radiation invisible to the human eye . In fact , stellar electromagnetic radiation span the entire electromagnetic spectrum , from thdaongest wavelengths of radio waves thru infrared , visible light , ultraviolet , to the shortest of X @-@ rays , and gamma rays . From thedaandpoint of total energy emitted by a star , not all components of stellar electromagnetic radiation significant , but all frequencies provide insight into the star  physics .