Messier numbers were first applied to what?
Accept any of GALAXIES, STAR CLUSTERS, NEBULAE or SUPER NOVA but not COMETS
accept any of galaxies star clusters nebulae or super nova but not comets
accept any of galaxies star clusters nebulae or super nova but not comets
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Accept any of GALAXIES, STAR CLUSTERS, NEBULAE or SUPER NOVA but not COMETS