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      Cosmic Cascade in NGC1999
      Wallpaper author:
      Ray Astro Explorer

      23 Jan 2024

      Cosmic Cascade in NGC1999

      Herbig-Haro (HH) objects are bright patches of nebulosity associated with newborn stars. NGC1999 in Orion at an approximate distance of 1,500 light years, is one of many areas where they can be found.

      They can change visibly quite rapidly as they move away from their parent star. In the image this is a multiple star V380 Ori, which does not appear in this close up .

      HH 222 in the image is a giant shocked region in the L11641 cloud, and popularly known as the Orion streamers or "The Waterfall" on account of its structure. HH 222 is located at the top of the "fall" and at the base of the "fall" is another such object, HH 34. The stream is unusual in that it spans almost 6 arc minutes. There are also several smaller HH objects in the fov, but these are not very well defined .

      John Ebersole posted an image in the Gallery of this region (NGC1999) almost 2 years ago, and in it he points out that there is an annotated image showing these HH objects,. This image is located at - https://astrodudis.com/ngc-1999/

      Acknowledgements to John, Wikipedia and The Astronomical Journal 2013 November for all the above information.

      Please do not be put off by the attached image which for me was a real struggle, ending up with blurring the mottled background into oblivion. Hopefully someone more proficient will process and post a decent result and thus encourage others to try.

      Also, many thanks to Ernesto for approving this as a New Observation.

      CS

      Dataset from which the image was processed

      NGC 1999

      5 credit

      Open
      Telescope Live
      CHI-1-CMOS

      Cosmic Cascade in NGC1999