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NGC 7129, NGC 7142, some dark nebula, and some stars

NGC 7129 is a very nice looking combination reflection nebula/open cluster  in the constellation of Cepheus.  The open cluster NGC 7142 is also seen in this wide field image and is toward the lower left.  Also in the frame are dark nebula patches and lots of colored stars.

This image was taken on August 14, 2018 at the San Diego Astronomy Association site at Tierra del Sol, San Diego County, California.  This is an “RGB” image created by taking twenty red, green and blue filtered images of 240 seconds each.  PixInsight was used to calibrate, align and stack the images.  The color channels were also combined with PixInsight to create a color image.  PixInsight’s MultiscaleLinearTransform tool was used to attenuate the noise and the histogram was adjusted using the HistogramTransformation tool.  Color saturation was increased a little using the CurvesTransformation tool and then the image was saved as a 16 bit TIFF for export to Photoshop.  Additional color balancing was performed in Photoshop using the ChannelMixer tool.  The star profiles were adjusted slightly using Photoshop’s erosion filter tool -> Minimum filter.  The image was then saved as a resampled JPEG for display here.

Click on the image below for a slightly larger version.  Click on this link to see a full resolution version on my Astrobin page.

Posted in Bright Nebula, Processing Notes, Star Clusters

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