Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  Checkmark Nebula  ·  HD168447  ·  HD168521  ·  HD168569  ·  HD168585  ·  HD168607  ·  HD168625  ·  HD168701  ·  LBN 60  ·  Lobster Nebula  ·  M 17  ·  NGC 6618  ·  Sh2-45  ·  Swan Nebula  ·  omega Nebula
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Messier 17 - "Omega Nebula", Georg N. Nyman
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Messier 17 - "Omega Nebula"

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Messier 17 - "Omega Nebula", Georg N. Nyman
Powered byPixInsight

Messier 17 - "Omega Nebula"

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Description

M17/NGC6618, often called Omega Nebula, is a large HII region in the constellation Sagittarius.The Omega Nebula is between 5,000 and 6,000LJ from Earth and it spans some 15 light-years in diameter. The cloud of interstellar matter of which this nebula is a part is roughly 40 light-years in diameter and has a mass of 30,000 solar masses. The total mass of the Omega Nebula is an estimated 800 solar masses.It is considered one of the brightest and most massive star-forming regions of our galaxy. Its local geometry is similar to the Orion nebula except that it is viewed edge-on rather than face-on.

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Messier 17 - "Omega Nebula", Georg N. Nyman