Sharpless 132 in Cepheus
CLICK ON IMAGE FOR FULL SIZE VIEW (2600x1950)
Scope: Explore Scientific MN152 Maksutov Newtonian at f/4.8, Location: Laguna Mountains, CA, 30 August 2014 Camera: ST8300M
Exposure: Exposure: 16 x 10 min (2x2 bin) exposure with H-Alpha, 8 x 4.5 min (2x2 bin) RGB exposures.
Processing: Data Collection - CCDSoft (as FITs). Calibrated, stacked (Sigma Kappa Combine) in Deep Sky Stacker, L - RGB channel registration, equalization, central gradient removal - Astroart. Color calibration with eXcalibrator. Curves, Levels, and Luminance development, RGB combine - Images Plus. Finishing - Photoshop. All processing was done on 2x2bin data after up-sampling to 1x1 bin equivalent (3352x2532). This image uses H-Alpha data for a luminosity layer. Development was an LRGB combine with Luminance layering; Luminance channel created as described. Saturation in LAB color. Final Image size is approximately 3352x2532 resized to 2600x1950.
North is up in this image. Sharpless 132 is also known as LBN 473. It is the overall emission (red) region dominating this field. The very brightest of the emission nebulosity contains many Young Stellar Objects. The larger medium brightness region in the upper left is LBN 471 that is embedded within the very much larger LBN 473 / Sharpless 132. On the very far left edge is the small open cluster known as Berkeley 94. There are Dark nebulae (LDN 1150, 1154, 1156, 1161, 1163, and TGU H621); there are also some notable stars of the variable type with two Wolf-Rayet stars in the field. The annotated image identifies these different objects. This image replaces an earlier image in the archives here. Horizontal FOV is 88'
Image center is approximately - Equatorial 2000: RA: 22h 18m 16s Dec: +56°02'49"
All images and content remain the property of Jim Thommes - copyright 2003 - 2014
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