From Wikipedia: "Omega Centauri ( NGC 5139, or Caldwell 80) is a globular cluster in the constellation of Centaurus that was first identified as a non-stellar object by Edmond Halley in...
NGC 1737 is an emission nebula in the constellation Dorado. This nebula is located in the Large Magellanic Cloud. It was discovered by the British astronomer John Herschel in 1836.