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NGC 3953 Region



Scope: Celestron 9.25 Edge HD 235 mm at f/7, Location: DAA Observatory, Shelter Valley, CA, 24 and 25 March 2023,  Camera: ASI294MM (Baader  LRGB Filters)

Exposure: L - 130 x 3.5 minutes (gain-121 2x2) ,  RGB - 34 each x 2.5 minutes  - (gain-121 2x2).

Processing: Data Collection -  Sequence Generator Pro (as FITs).  Sub-frame calibration - Pixinsight (WBPP). Sub-frame  registration and integration (Average combine -  ESD Rejection) - PixInsight (WBPP).  Mure Denoise - PixInsight.  Non-linear stretching, normalization and gradient removal - PixInsight.   Curves, Levels, RGB combine, Luminance layering - PixInsight. Generation of starless Luminance image for later processing - StarXTerminator. Photometric RGB calibration (SPCC) - PixInsight.  De-convolution - BlurXTerminator.  Final finishing  - Affinity Photo.  Annotation - PixInsight, Aladin (Simbad and NED), and Affinity Photo. This image is a  LRGB with luminance layering.  Image processed at 4144x2822 resolution. Final Image size is approximately  4078x2787.

North is up in this image.  This image shows NGC 3953 along with galaxies MCG +09-20-023 and MCG +09-20-019. NGC 3953 is a SB(r)bc galaxy at  distance of  about 57 million light years; MCG +09-20-019 is a SB (RS)m galaxy at a distance of about 55 million light years. These predominant galaxies are in a field of background galaxies  and quasars.   The many background galaxies are visible in the full size image. Some of the brighter ones are in the annotated image and vary in distance from 435 to 1,076 million light years. The furthest objects visible in this image are the Quasars  and their distances  (by light travel time) range from 5.85 to 11.36 billion years (Lookback).  These objects, information, background galaxies, and some of the brighter stars are identified in the annotated image A wider field view of this region can be seen in an older image here. Horizontal FOV is approximately 39.7 arc minutes. Full size image scale is approximately 0.58 arcsec/pix.

Image Center approximately - Equatorial 2000: RA: 11h 53m 8s Dec: +5215'25"


All images and content remain the property of Jim Thommes - copyright 2003 - 2023

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