Rotation of the disc in M 17

Position-velocity diagram revealing the rotation of the disc. It is derived from a cut along the major axis of the disc, using the IRAM Plateau de Bure interferometer. For comparison, the theoretically expected position-velocity curve for an edge-on disc around a star of 15 solar masses is shown, the outer part of which (radii larger than about 15,400 AU) is in Keplerian rotation while its inner part is modeled as a rigid rotator.



About the Image

Release date:12 May 2004
Related releases:eso0416
Size:1067 x 598 px

About the Object

Name:Messier 17, Omega Nebula
Type:• Milky Way : Star : Circumstellar Material : Disk
• Milky Way : Nebula : Type : Star Formation
Distance:5500 light years

Image Formats

Large JPEG
86.9 KB
Screensize JPEG
75.1 KB

Colours & filters

Millimeter Other


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