Messier 81
Messier 81 ( also known as NGC 3031 or Bode's Galaxy ) is a grand design spiral galaxy about 12 million light-years away , with a diameter of 90 , 000 light years , in the constellation Ursa Major . 
<triplet> Messier 81 <subj> Ursa Major <obj> constellation <triplet> Ursa Major <subj> constellation <obj> instance of