LBN 453 and 445 in Cepheus
CLICK ON IMAGE FOR FULL SIZE VIEW (2600x1950)
Scope: FSQ-106N at f/5, Location: Pine Creek, Laguna Mountains, CA 3 July 2016 Camera: Atik 383 (Astronomik Gen II LRGB filters)
Exposure: Exposure: 14 x 8 min, (1x1 bin) exposure with UV/IR block, 10 x 10 min (2x2) exposure with H-Alpha, 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 - Astroart. Curves, Levels, RGB combine - Images Plus. Luminance layering and finishing - Photoshop. This image is an LRGB combine with Luminance layering. The H-Alpha exposure was screen blended into the IR/UV Block exposures to create the Luminance channel. Final color calibration - eXcalibrator. Color saturation in LAB color. Native image size - 3354x2529. Final Image size is approximately 2600x1950.
North is up in this image. This field lies within the constellation of Cepheus. The two red nebulae are Hydrogen Alpha emission nebulae. The upper one is LBN 453 - it also appears to have a small reflection component (bluish color). The lower one is LBN 445. These two nebulae are part of a larger complex known as Sharpless 129, LBN 449, Cederblad 190 that extends beyond this filed toward the upper right. on the left side of the image is a faint dark lane comprising of a few catalogued dark nebulae. These objects as well as a few of the bright stars are identified in the annotated image. Horizontal FOV is 120'
Image center is approximately - Equatorial 2000: 21h 13m 33s Dec: +59°37'20"
All images and content remain the property of Jim Thommes - copyright 2003 - 2016 copyright 2003 - 2012
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