page_title: HH 1/2
hierarchical_section_title: HH 1/2
caption_attribution_description: English: This is an image of the Herbig-Haro Object HH 1/2, the first HH that was recognized as such.Images are from HST Proposal 13484 (see also: Raga et al. 2015). The stripe in the middle is left from my attempt to reduce the noise in this region.Image Credit: NASA/ESA Hubble Space Telescope WFC3Instrument: Wide-field Camera 3Filters: F373N, F487N, F631N, F656N, F673N
context_page_description: The Herbig-Haro objects HH 1/2 are the first such objects to be recognized as Herbig-Haro objects and were discovered by George Herbig and Guillermo Haro. They are located at a distance of about 1500 light-years in the constellation Orion near NGC 1999. HH 1/2 are among the brightest Herbig-Haro objects in the sky and consist of a pair of oppositely oriented bow shocks, separated by 2.5 arcminutes. The HH 1/2 pair were the first Herbig-Haro objects with detected proper motion and HH 2 was the first Herbig-Haro object to be detected in x-rays. Some of the structures in the Herbig-Haro Objects move with a speed of 400 km/s.
context_section_description: The Herbig-Haro objects HH 1/2 are the first such objects to be recognized as Herbig-Haro objects and were discovered by George Herbig and Guillermo Haro. They are located at a distance of about 1500 light-years (460 parsec) in the constellation Orion near NGC 1999. HH 1/2 are among the brightest Herbig-Haro objects in the sky and consist of a pair of oppositely oriented bow shocks, separated by 2.5 arcminutes (a projected separation of about 1.1 light year). The HH 1/2 pair were the first Herbig-Haro objects with detected proper motion and HH 2 was the first Herbig-Haro object to be detected in x-rays. Some of the structures in the Herbig-Haro Objects move with a speed of 400 km/s.
caption: Hubble WFC3 image of HH 1/2 and the jet pointing to HH 1 (right)
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