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Back Jet from Young Star

Jet from Young Star


Depicts: HH-1, HH-2
Copyright: J. Hester (Arizona State University), the WFPC 2 Investigation Definition Team, and NASA

This arrowhead structure is a classic bowshock pattern produced when high-speed material encounters a slower-speed medium. Young stellar jets were discovered 20 years ago, in part due to visible-light observations of bright patches of nebulosity (called Herbig-Haro objects), which appear to be moving away from associated protostars.
Last Update: 1 September 2019
22-Jan-2026 13:45 UT

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