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Image of the day 01/08/2025

    NGC 3766 open cluster, RGB, AnaTa
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    NGC 3766 open cluster, RGB

    Revision title: Main image

    Image of the day 01/08/2025

      NGC 3766 open cluster, RGB, AnaTa
      Powered byPixInsight

      NGC 3766 open cluster, RGB

      Revision title: Main image

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      Description

      NGC 3766 is a relatively small (12') and very bright (5.5 Mag) open cluster located in the constellation Centaurus. It is located in the vast star-forming region known as the Carina molecular cloud. NGC 3766 looks very compact and concentrated and have >100 blue stars. However, only 36 stars have true association with the cluster. NGC 3766 is a young cluster with an estimated age of 14.4 million years. 
      This picture was captured by rented scope from Chilescope. SNR is about 100-120. 

      Processing:
      Dynamic Crop for R, G, B
      RGB combine.
      Background was cleaned using Seti Astro Auto DBE.
      Color calibration for RGB was done using SPCC
      Blur and Noise XT for RGB.  
      Standard linear HT stretching for RGB 
      Noise XT and then HT stretch again for RGB
      Lum mask
      Curves for slight saturation of RGB
      Yellow and Blue masks were used to saturate and slightly enhance red-yellow and white-blue stars, respectively.
      Annotation is on the panel A.
      Main image is cropped from panel A and is the panel B.

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        NGC 3766 open cluster, RGB, AnaTa
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        NGC 3766 open cluster, RGB, AnaTa
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      B

      Title: Main image

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      NGC 3766 open cluster, RGB, AnaTa

      In these collections

      Clusters (Open; NGC)