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IC 1369, SH1-89 in Cygnus



Scope: Explore Scientific MN152 Maksutov Newtonian at f/4.8, Location: DAA Observatory, Shelter Valley - Anza Borrego Desert, CA,  11 August 2018  Camera: Atik 383 (Astronomik Gen II  LRGB filters)

Exposure: Exposure:  16 x 10 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 up in this image.  The main target in this image is the open cluster IC 1369 (also cataloged Collinder 432) located  upper left. There are numerous dark nebulae structures in this field from multiple catalogs - LDN 070 / Barnard 361; LDN 960; LDN 961; LDN 964 / Dobashi 2814; LDN 967; LDN975; Dobashi 2823/2824. Also in this field are planetary nebulae Sharpless 1-89 (from the first catalog in 1953) and the tine bright NGC 7026.  These objects and selected bright stars are identified in the annotated image.. Open Cluster IC 1369 is estimated at 6,800 light years distant from Earth and an estimated age of 437 million years.  Horizontal FOV is approximately 85'  - ifull size mage scale of 1.96 arcsec/pixel.

Image center is located approximately - Equatorial 2000: RA: 21h 10m 30s Dec: +4741'32"


All images and content remain the property of Jim Thommes - copyright 2003 - 2018

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