#star  (astronomy) a celestial body of hot gases that radiates energy derived from thermonuclear reactions in the interior
  supertype:  celestial_body__celestialbody__heavenly_body  natural objects visible in the sky
  subtype:  binary_star  Deneb  Denebola  fixed_star  giant_star  loadstar  multiple_star  neutron_star  nova  red_dwarf_star  red_giant_star  sun  sun.star  supergiant  supernova  variable_star  white_dwarf_star
  instance:  Alpha_Crucis  Beta_Centauri  Beta_Crucis  Pollux  Regulus  Spica  Sterope
  member of:  extragalactic_nebula__extragalacticnebula__galaxy  (astronomy) a collection of star systems; any of the billions of systems each having many stars and nebulae and dust; "`extragalactic nebula' is a former name for `galaxy'"
     member of:  universe__cosmos  the whole collection of existing things
  member of:  constellation  a configuration of stars as seen from the earth

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