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Omega Nebula (M17, NGC6618) Facts

Omega Nebula (M17, NGC6618) Facts Diffuse Nebula in Sagittarius

Omega Nebula (M17, NGC6618) is a diffuse nebula object of interest in space. It lies at a distance of 5-6 kly light years away in the constellation of Sagittarius.

It is referred to as M(17) when it was catalogued by Charles Messier in 18th - 19th Century France. It is also referred to as NGC(6618) in the New General Catalogue. This is a list of deep space objects that was compiled by John Louis Emil Dreyer in 1888 in an update to John Herschel earlier catalogue.

The Diffuse Nebula's location is 18:20.8 (R.A.) and -16:11 (Dec.). Its Visual (Apparent) Brightness is 6.00 Magnitude with an apparent dimension of 11.0 . The object can be seen with the naked eye, that is, you don't need a telescope/binoculars to see it.

Omega Nebula (M17, NGC6618) has a radius of 11 light years or to put it another way, it has a diameter of 22 light years. It would take a space ship 22 years travelling at the speed of light to get from one side to the other.

Omega nebula (M17,NGC6618) is a diffuse nebula. It was discovered in 1745 by Philippe Loys de Cheseaux. It's location is RA(18:20.8), Dec(-16:11) and its distance is calculated 42526 light years away. Its visual Brightness is 6.0. Its apparent dimensions measured in arcmins is 11.0.

Fact File


NameOmega Nebula (M17, NGC6618)
TypeDiffuse Nebula
Messier Id17
NGC Id6618
ConstellationSagittarius
Right Ascension18:20.8
Declination-16:11
Distance (Lt.Yr)5-6 kly
Radius (Lt.Yr)11.00
Apparent Dimension11.0
Visual / Apparent Magnitude6.00
Naked Eye VisibleYes - Magnitudes
Year of Discovery1745
DiscovererPhilippe Loys de Cheseaux
CoprightN.A.S.A, Hubble Site


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