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.

Źródło:

ESO

O zdjęciu

Identyfikator:eso9948c
Typ:Obserwacje
Data publikacji:17 listopada 1999
Powiązane komunikaty:eso9948
Rozmiar:802 x 895 px

O obiekcie

Nazwa:HH 34
Typ:Milky Way : Star : Evolutionary Stage : Protostar
Odległość:1500 lat świetlnych
Constellation:Orion
Kategoria:Nebulae

Formaty zdjęć

Wielki JPEG
271,5 KB

Tapety

1024x768
350,2 KB
1280x1024
512,4 KB
1600x1200
653,5 KB
1920x1200
696,2 KB
2048x1536
906,7 KB

Współrzędne

Pozycja (RA):5 35 30.98
Pozycja (Dec):-6° 28' 37.86"
Pole widzenia:2.66 x 2.97 arcminutes
Orientacja:North is 0.9° prawo of vertical

Kolory i filtry

PasmoDługość faliTeleskop
Optyczny
B
429 nmVery Large Telescope
FORS2
Optyczny
H-alpha
429 nmVery Large Telescope
FORS2
Optyczny
Sii
673 nmVery Large Telescope
FORS2