The smoky pink core of the Omega Nebula

Jan 04, 2012
This image of the Omega Nebula, captured by ESO's Very Large Telescope, is one of the sharpest of this object ever taken from the ground. It shows the dusty, rosy central parts of the famous star-forming region in fine detail. Credit: ESO

(PhysOrg.com) -- A new image of the Omega Nebula, captured by ESO's Very Large Telescope (VLT), is one of the sharpest of this object ever taken from the ground. It shows the dusty, rose-coloured central parts of this famous stellar nursery and reveals extraordinary detail in the cosmic landscape of gas clouds, dust and newborn stars.

The colourful gas and dark dust in the Omega Nebula serve as the for creating the next generation of stars. In this particular section of the nebula, the newest stars on the scene — dazzlingly bright and shining blue-white — light up the whole ensemble. The nebula's smoky-looking ribbons of dust stand in silhouette against the glowing gas. The dominant reddish colours of this portion of the cloud-like expanse, arise from hydrogen gas, glowing under the influence of the intense ultraviolet rays from the hot young stars.

The Omega Nebula goes by many names, depending on who observed it when and what they thought they saw. These other titles include the Swan Nebula, the Horseshoe Nebula and even the Lobster Nebula. The object has also been catalogued as Messier 17 (M17) and NGC 6618. The nebula is located about 6500 light-years away in the constellation of Sagittarius (The Archer). A popular target of astronomers, this illuminated gas and dust field ranks as one of the youngest and most active stellar nurseries for massive stars in the Milky Way.

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This zoom sequence starts with a broad panorama of the central parts of the Milky Way. We then gradually close in on one of the bright regions of dust and gas where new stars are forming. In the final sequence we see a very detailed new close-up view of Messier 17, sometimes called the Omega or Swan Nebula in a new picture from ESO’s Very Large Telescope (VLT). Credit: ESO/INAF-VST/OmegaCAM/Nick Risinger

The image was taken with the FORS (FOcal Reducer and Spectrograph) instrument on Antu, one of the four Unit Telescopes of the VLT. In addition to the huge , exceptionally steady air during the observations, despite some clouds, also helped make the crispness of this image possible. As a result this new picture is among the sharpest of this part of the ever taken from the ground.

This image is one of the first to have been produced as part of the ESO Cosmic Gems programme.

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