Omega Nebula in Sagittarius ( Messier 17, NGC 6618 )

Omega Nebula in Sagittarius ( Messier 17, NGC 6618 ).by Mike O'Day ( 500px.com/MikeODay ).Visible to the naked eye the Omega Nebula (also known as the Swan, Horseshoe or Lobster Nebula) M17 is in the Milkyway and is aound 4200 light years distance from Earth.Links:500px.com/MikeODay ;photo.net/photos/MikeODay ;Details:RA 18h 22m, Dec -16deg 10'. Skywatcher Quattro 10" f4 Newtonian. Skywatcher AZ Eq6 GT Mount.Orion Short Tube 80mm guide scope & auto guider - PHD2. Baader MPCC Mark 3 Coma Corrector, UHC-S 'Nebula' filter.Nikon D5300 (unmodified).Field of view (deg) ~ 1.35 x 0.90.37 x 100 sec ISO800.Pixinsight & Photoshop.14 August 2015.