Sharpless 154 and vdB 155 in Cepheus
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ON IMAGE FOR FULL SIZE VIEW (2600x1950) Scope:
FSQ-106N at f/5, Location: Laguna Mountains, CA 19 September 2014
Camera: Atik 383L Exposure:
Exposure: 6 x 8 min (1x1 bin) Luminance exposure with IR/UV
blocking filter and 17 x 8 min (2x2 bin) exposure with Hydrogen Alpha filter, 8 x
4
min (2x2 bin) RGB exposures. Processing: Data
Collection - Artemis Capture (as FITs). Calibrated, stacked (Kappa
Sigma Combine) - Deep Sky Stacker. LRGB channel registration, equalization, and
central gradient removal - Astroart. Curves, Levels, RGB combine -
ImagesPlus. Luminance Layering, final stretch, and finishing - Photoshop.
This image is a HaL- RGB combine with Luminance layering. Color
saturation in LAB color; H-Alpha and Luminance exposure stacks were used for the luminance
layer. Processing was in up-sampled data (to simulate 1x1
bin). Final Image size is approximately 2600 x 1950. North is to the
right in this
image. In this image, Sharpless 154 (also known as LBN 521 is the dominant
emission nebula in the left side of the image. In the upper
left corner is the open cluster NGC 7419; in the upper right corner is a
small portion of Sharpless 155 - also known as the "Cave Nebula".
Between Sharpless 154 and 155 is the blue reflection nebula vdB 155 also known
as LBN 524. There are dark regions on the left and right in this image field.
These dark nebulae are cataloged in the LDN, TGU and Dobashi catalogs. These
objects as well as some of the brighter stars are identified in the annotated
image. Horizontal FOV is 120' Image
center is approximately - Equatorial 2000: RA: 22h 49m
23s Dec: +61°35'38"
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