LDN 1228 and LBN 550 in Cepheus

CLICK ON IMAGE FOR FULL SIZE VIEW (2600x1950)

Scope: FSQ-106N at f/5, Location:  Pine Creek, Laguna Mountains, CA   29 May 2016  Camera: Atik 383 (Astronomik Gen II  LRGB filters)

Exposure: Exposure: 16 x 9 min, (1x1 bin) exposure with UV/IR block,  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 and equalization, rough color calibration and gradient removal - Astroart.  Curves, Levels, RGB combine Images Plus. Luminance layering and finishing  - Photoshop. This image is an LRGB combine with Luminance layering. Final color calibration - eXcalibrator. The Luminance construction was the Luminance exposures. Color saturation in LAB color.    Native image size - 3354x2529.  Final Image size is approximately 2800x2100.

North is to the left in this image. This field lies within the constellation of Cepheus. The dark nebula LDN 1228 (Lynds Dark Nebula) with its extended structure dominates in this image. This interstellar dust obstructs the view of visible wavelengths of  the background stars and objects. There are numerous cataloged objects associated with this dark matter - LDN1228 is the most prominent.  The brighter areas behind (apparently behind) the dark nebula and extending off the field to the left is known as LBN 550 (Lynds Bright Nebula). These objects , selected dark objects, and some of the bright stars are identified in the annotated image.  Horizontal FOV is 120'

Image center is approximately - Equatorial 2000: RA: 20h 59m 47s Dec: +77°27'21" 

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

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