 The star with the lowest iron content ever measured is the dwarf HE1327 @-@ 2326 , with only 1 / 200,000th the iron content of the Sun . By contrast , the super @-@ metal @-@ rich star μ Leonis has nearly double the abundance of iron as the Sun , while the planet @-@ bearing star 14 Herculis has nearly triple the iron . There also exist chemically peculiar stars that show unusual abundances of certain elements in their spectrum ; especially chromium and rare earth elements . Stars with cooler outer atmospheres , including the Sun , can form various diatomic and polyatomic molecules . 
 The star with the lowest iron content ever measured <a href='drop_aux' title='1'><mark>is</mark></a>the dwarf HE1327 @-@ 2326 , with only 1 / 200,000th the iron content of the Sun . By contrast , the super @-@ metal @-@ rich star μ Leonis <a href='got' title='2'><mark>has</mark></a> nearly double the abundance of iron as the Sun , while the planet @-@ bearing star 14 Herculis <a href='got' title='3'><mark>has</mark></a> nearly triple the iron . <a href='dey_it' title='4'><mark>There</mark></a> also exist chemically peculiar stars <a href='null_relcl' title='5'><mark>that</mark></a>show unusual abundances of certain elements in their spectrum ; especially chromium and rare earth elements . Stars with cooler outer atmospheres , including the Sun , can form various diatomic and polyatomic molecules . 
The star with da lowest iron content eva measured the dwarf HE1327 @-@ 2326 , with only 1 / 200,000th the iron content of the Sun . By contrast , the super @-@ metal @-@ rich star μ Leonis got nearly double tdaabundance of iron as thdaun , while the planet @-@ bearing star 14 Herculis got nearly triple the iron . It also exist chemically peculiar stars show unusual abundances of certain elements in their spectrum ; especially chromium and rare earth elements . Stars wit cooler outer atmospheres , including thedan , can form various diatomic and polyatomic molecules .