VY Canis Majoris
VY Canis Majoris ( abbreviated to VY CMa ) is an extreme oxygen-rich ( O-rich ) red hypergiant ( RHG ) or red supergiant ( RSG ) and pulsating variable star located at away from Earth in the constellation of Canis Major . 
<triplet> VY Canis Majoris <subj> hypergiant <obj> instance of <subj> Canis Major <obj> constellation <triplet> Canis Major <subj> constellation <obj> instance of