A Massive Star Forming in M17

This image shows an enlargement of a small area of the field in ESO Press Photo eso0030a (slightly above and to the right of the centre), centred on the position of a massive star in the process of being formed. Its colour is such that it can only be seen in the longest-wavelength image (Ks). Below is the infrared spectrum of this object, obtained with SOFI on August 16, 2000. As can be seen, it is nearly featureless, with rapidly increasing intensity towards longer wavelengths. Technical information : The spectrum was obtained during 20 min exposure, with an additional 20 min on the background sky. The spectral resolution is approx. 1000. The "absorption line" at 2.06 µm is an artefact from a helium line when the "background" nebular spectrum was subtracted to cancel the hydrogen lines.

Credit:

ESO

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About the Image

Id:eso0030b
Type:Collage
Release date:14 September 2000
Related releases:eso0030
Size:800 x 566 px

About the Object

Name:Horseshoe Nebula, Lobster Nebula, M 17, Messier 17, Omega Nebula, Spectrum, Swan Nebula
Type:• Milky Way : Nebula : Type : Star Formation
• X - Nebulae
Distance:5500 light years

Image Formats

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233.7 KB
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Colours & filters

BandWavelengthTelescope
Infrared
J
1.25 μm New Technology Telescope
SofI
Infrared
H
1.65 μm New Technology Telescope
SofI
Infrared
K
2.2 μm New Technology Telescope
SofI

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