<ul data-eligibleForWebStory="false">The Omega nebula, also known as M17, is a star-forming region in Sagittarius.Visible near Eagle nebula, it's ideal to view through binoculars or a telescope.Located 5,500 light-years away, M17 spans 15 light-years and has a mass of 800 Solar masses.Part of a larger cloud, it's in the Sagittarius arm of our Milky Way.