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Scope: Explore Scientific MN152 (Mak-Newt) at f/4.8, Location: DAA Observatory, Shelter Valley CA,  18 May 2018  Camera: ST8300M (Baader LRGB filters)

Exposure: Exposure:  16 x 10 min (1x1 bin) and 8 x 12 min (2x2 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, 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  2800 x 2100.

North is up in this image.   The two main galaxies in this field are NGC 5850 (SB(r)b) and NGC 5846 (compact E2+). NGC 5850 is notable due to it's pronounced bar and ring that is seen face on. There are several other galaxies in this field listed in the NGC (NGC 5831, 5838, 5839, 5841/48, 5845). There are numerous galaxies listed in other catalogs in this image field as well. Many of these galaxies are members of the NGC 5846 galaxy group. This image does not have all members since the group boundary extends beyond the image field. These galaxies and some of the brighter stars are identified in the annotated image..   Horizontal FOV is approximately 38 arc minutes.

Image center is located approximately - Equatorial 2000: RA: 15h 05m 55s Dec: +0143'29"

 

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

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