Protostar HH 34 in Orion

This image is an enlargement of 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.

Credit:

ESO

About the Image

Id:eso9948c
Type:Observation
Release date:17 November 1999
Related releases:eso9948
Size:802 x 895 px

About the Object

Name:HH 34
Type:• Milky Way : Star : Evolutionary Stage : Protostar
• X - Nebulae
Distance:1500 light years
Constellation:Orion

Image Formats

Fullsize Original
767.3 KB
Large JPEG
271.1 KB
Screensize JPEG
345.3 KB

Wallpapers

1024x768
349.8 KB
1280x1024
512.1 KB
1600x1200
653.1 KB
1920x1200
696.1 KB
2048x1536
906.6 KB

Coordinates

Position (RA):5 35 30.98
Position (Dec):-6° 28' 37.86"
Field of view:2.66 x 2.97 arcminutes
Orientation:North is 0.9° right of vertical

Colours & filters

BandWavelengthTelescope
Optical
B
429 nmVery Large Telescope
FORS2
Optical
H-alpha
429 nmVery Large Telescope
FORS2
Optical
Sii
673 nmVery Large Telescope
FORS2

 

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