Barnards Loop – revisited

Well the night of Boxing Day (26th Dec) proved to be lovely and clear; dark too with it being a new moon. The stars of Orion were twinkling beautifully in the south-eastern sky, so I just couldn’t resist going and grabbing a few hours of hydrogen alpha subs. I’d been waiting since last spring to redo the Ha exposures for Barnard’s Loop and having exposed them, I chose the best 25 of the 4 minute exposures, stacked them and then combined them with my previous RGB exposures.Here’s the a small version of the resulting image:

Barnard's Loop  Click image to view the larger version on my Astro Gallery.

Image Details:

  • Object:   Barnards Loop in Orion
  • Camera:  Canon 300D (modified)
  • Optics:   Canon 50mm f1.4
  • Aperture: f2.0
  • ISO: 800
  • Filter: Astronomik Ha in camera
  • Exposure:  1hr 40 mins (4min subs)
  • Plus previous RGB data
  • For those who have not seen my previous posts on this object, here are some details:

    Barnard’s Loop is a large nebulous shell of dust & ionised hydrogen gas; it is also known as Sh 2-276. The loop partially surrounds the central region of Orion, it is some 1,600 light years from Earth and has a diameter of some 200 to 300 light years. It is currently thought that one or several significant supernova events, about 2 million years ago, blasted this matter out from the core regions of Orion.
    Within the loop several other distinct features can be seen including M42, M43, M78, the Horsehead & Flame Nebulae.


    No Comments

    Post a Comment