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vdB 123 in Serpens



Scope: Explore Scientific MN152 Maksutov Newtonian at f/4.8, Location: Laguna Mountains, CA   1 July 2016  Camera: ST8300M (Baader LRGB filters)

Exposure: Exposure:  16 x 12 min (1x1 bin) exposure with IR/UV Block filter, 8 x 4 min (2x2 bin) RGB exposures.

Processing: Data Collection -  Sequence Generator Pro (as FITs).  Calibrated, stacked (Kappa Sigma Combine) - Deep Sky Stacker. LRGB channel registration, equalization, and gradient removal - Astroart.  Curves, Levels, RGB combine - ImagesPlus. Luminance Layering, final stretch, and finishing  - Photoshop.  RGB calibration - eXcalibrator. This image is a  RGB combine with Luminance layering.  Color saturation in LAB color.  The IR/UV Blocking filter exposure stack was used for the luminance layer. Images processed at 3352 x 2532 resolution. Final Image size is approximately 2600 x 1950.

North is to the left in this image.  vdB 123 is a reflection nebula in a spur region of the Milky Way's Great Rift. The Great Rift is a swath of dark lane in our galaxy's plane that is shrouded in dust and interstellar matter. vdB 13 is the middle blue nebula - center left; its embedded star is HD 170634.  The little red nebula just above it is known as the Serpens Reflection Nebula - it is a heavily studied object because of its young age and star formation taking place within it. Also nearby Upper right is the Serpens G3-G6 Star Cluster - another star forming area. The interstellar matter of the Rift  creates a number of dark nebulae. There are 14 dark nebulae in this field from the Dobashi catalog - nine of these larger clouds are noted in the annotation. These objects  are identified in the annotated image.   Horizontal FOV is 85'

Image center is approximately - Equatorial 2000: RA: 18h 30m 32s Dec: +0102'08"


All images and content remain the property of Jim Thommes - copyright 2003 - 2016 copyright 2003 - 2012

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