HD 138573
HD 138573 is G-type main-sequence star in the constellation Serpens , class G5IV-V , roughly 100 . 8 light years from Earth ( 30 . 912 parsecs ) . 
<triplet> HD 138573 <subj> star <obj> instance of <subj> Serpens <obj> constellation <triplet> Serpens <subj> constellation <obj> instance of