 Kepler @-@ 6 is a star that is approximately 1 @.@ 209 Msun , or some five @-@ fourths the mass of the Sun . It is also wider than the sun , with a radius of 1 @.@ 391 Rsun , or seven @-@ fifths of that of the Sun . The star is approximately 3 @.@ 8 billion years old , and has an effective temperature of 5647 K ( 9 @,@ 705 ° F ) . In comparison , the Sun has a slightly warmer temperature of 5778 K. Kepler @-@ 6 has a metallicity of [ Fe / H ] = + 0 @.@ 34 , making it 2 @.@ 2 times more metallic than the Sun . On average , metal @-@ rich stars tend to be more likely to have planets and planetary systems . 
