The term CANIS MAJOR STAR IN refers to four stars in the constellation Canis Major. The first star is ORION, which is a bright blue supergiant star located in the Milky Way galaxy. The second star is ARGO, which is a white dwarf star located in the constellation Carina. The third star is Noahs, which is a yellow-white main sequence star located in the constellation Monoceros. The fourth star is URSA, which is a red giant star located in the constellation URSA Major. All four stars are visible in the night sky and can be seen with the naked eye.