Messier 17, Swan Nebula in Sagittarius – Dr Johannes Schilling
Messier 17, Swan Nebula or Omega Nebula in Sagittarius 6m, 11′ Instrument: 254mm Newton, 76XObserved and sketched June 24th, 2017, 23.15h-24.00hLocation: Baindt, near lake of Constance, GermanyObserver: Gabriele Houtermans-Sieweke, Ravensburg