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...
The Rho Ophiuchi cloud covers a sky area of 4.5° × 6.5°. It consists of two large regions of dense gas and dust. The first region includes the star-forming region L1688 and the two fila...