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      NGC 6729 Bundle 14h CHI-1
      Wallpaper author:
      Mathieu Guinot

      04 Jan 2022

      NGC 6729 Bundle 14h CHI-1

      Within the Corona Australis molecular cloud which is one of the closest star-forming regions to us, only about 430 light years away, the complex of reflection nebulae cataloged as NGC 6726, 6727, and IC 4812 produce a characteristic blue color as light from the region’s young hot stars is reflected by the cosmic dust.

      The dust also obscures from view stars still in the process of formation.

      Near center, the smaller yellowish nebula NGC 6729, which is both reflection and emission nebula, bends around young variable star R Coronae Australis. Close to it, glowing arcs and loops shocked by outflows from embedded newborn stars are identified as Herbig-Haro objects. The most remarquables of them are HH100, just left to NGC6729, and HH101 which shows the classical reddish tint a little bit upper, and several others can be found through dust (little red spots).

      I really love the contrast is these kind of cosmic scenes between colours of blue reflection nebulae and dark/brown colours of clouds, the all embellished here by yellowish and reddish tints from many objects.

      To be mentionned that stars color in the field is affected by the strong presence of dust.

      FOV is about 30x30 minutes and scale is 0.62"/pix.

      L : 24x600s

      R : 25x600s

      G : 18x600s

      B : 17X600s

      Dataset from which the image was processed

      NGC 6723

      8 credit

      Open
      Telescope Live
      CHI-1-CCD
      • Type of target
        ............................................................................................................................
        Globular Cluster
      • Camera
        ............................................................................................................................
        FLI ProLine PL9000
      • Target coordinates
        ............................................................................................................................
        RA 284.8881 Dec -36.6322
      • Hemisphere
        ............................................................................................................................
        Southern
      • Telescope location
        ............................................................................................................................
        Chile
      • Transient event
        ............................................................................................................................
        No
      • Observed on
        ............................................................................................................................
        13 Mar 2021 - 04 Oct 2021
      Filter
      Avg Exp (s)
      Total Exposure
      Subframes
      Luminance3222h25m27
      Red3002h15m27
      Green2772h26
      Blue3002h10m26

      NGC 6729 Bundle 14h CHI-1