HH 212

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HH 212 - The Herbiga-Haro object is located in the direction of the Orion constellation, about 1.4 thousand light-years from Earth. The object is located in a dense molecular cloud near the Horse Head Nebula.

In regions such as this cloud of dust and gas collapse under the influence of gravity. The process is getting faster and faster, and the material gets hotter until the young star lights up in the center of the cloud. Any remaining material swirling around the emerging protostar creates an accretion disk until, in favorable circumstances, it eventually develops enough to create a base material for the emergence of planets, asteroids and comets.

Although this process has not yet been fully understood, it is common for this group of objects that the protostar and its accretion disk cause the formation of visible jets. The star in the center of the HH 212 is actually very young, only a few thousand years old. Its jets are perfectly symmetrical, with several nodes thrown at relatively regular intervals. Regularity suggests that jets are produced in relatively short time-perhaps in just 30 years. At a distance from the center, the thrown material encounters resistance, creating characteristic arches in the interstellar space, caused by a collision of dust thrown at a speed of several hundred kilometers per second with interstellar gas.

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