 Most stars are between 1 billion and 10 billion years old . Some stars may even be close to 13 @.@ 8 billion years old — the observed age of the universe . The oldest star yet discovered , HD 140283 , nicknamed Methuselah star , is an estimated 14 @.@ 46 ± 0 @.@ 8 billion years old . ( Due to the uncertainty in the value , this age for the star does not conflict with the age of the Universe , determined by the Planck satellite as 13 @.@ 799 ± 0 @.@ 021 ) . 
 Most stars <a href='drop_aux' title='1'><mark>are</mark></a>between 1 billion and 10 billion years old . Some stars may even be close to 13 @.@ 8 billion years old — the observed age of the universe . The oldest star yet discovered , HD 140283 , nicknamed Methuselah star , is an estimated 14 @.@ 46 ± 0 @.@ 8 billion years old . ( Due to <a href='None' title='2'><mark>the</mark></a><a href='negative_concord' title='3'><mark>uncertainty</mark></a> in the value , this age for the star <a href='uninflect' title='4'><mark>does</mark></a> not conflict with <a href='None' title='5'><mark>the</mark></a><a href='negative_concord' title='6'><mark>age</mark></a> of the Universe , determined by the Planck satellite as 13 @.@ 799 ± 0 @.@ 021 ) . 
Most stars between 1 billion and 10 billion years old . Some stars may even b close to 13 @.@ 8 billion yrs old — da observed age of the universe . The oldest star yet discovered , HD 140283 , nicknamed Methuselah star , is an estimated 14 @.@ 46 ± 0 @.@ 8 billion years old . ( Due to no uncertainty in tdavalue , this age for the star do not conflict w/ no age of thdaniverse , determined by thedaanck satellite as 13 @.@ 799 ± 0 @.@ 021 ) .