Protostar HH34 near Orion - outer space astronomy Poster

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Protostar HH34 near Orion - outer space astronomy Poster

tagged with: wallart, jets of dense gas, herbig haro, protostars evolution, orion nebula, outer space exploration, astronomy pictures, cosmological, hrbstslr prstrhh34, star galaxies, stars ejecta, heavens, eso, european southern observatory, vista

Galaxies, Stars and Nebulae series A fantastic photograph from deep space showing a three-colour composite of the young object Herbig-Haro 34 (HH-34), now in the protostar stage of evolution. It is based on CCD frames obtained with the FORS2 instrument in imaging mode, on November 2 and 6, 1999.
This object has a remarkable, very complicated appearance that includes two opposite jets that ram into the surrounding interstellar matter. This structure is produced by a machine-gun-like blast of "bullets" of dense gas ejected from the star at high velocities (approaching 250 km/sec). This seems to indicate that the star experiences episodic "outbursts" when large chunks of material fall onto it from a surrounding disc.
HH-34 is located at a distance of approx. 1,500 light-years, near the famous Orion Nebula, one of the most productive star birth regions. Note also the enigmatic "waterfall" to the upper left, a feature that is still unexplained.
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image code: prstrhh34

ESO/J. Emerson/VISTA www.eso.org
Reproduced under the Creative Commons Attribution 3.0 Unported license.

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