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NGC 4762 4754 4733 in Virgo



Scope: Explore Scientific MN152 Maksutov Newtonian at f/4.8, Location:  DAA Observatory, Shelter Valley, Anza Borrego Desert CA   21 April 2017  Camera: Atik 383 (Astronomik Gen II  LRGB filters)

Exposure: Exposure: 16 x 11 min, (1x1 bin) exposure with UV/IR block,  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 - Astroart.  Curves, Levels, RGB combine - Images Plus. Luminance layering and finishing  - Photoshop. This image is an LRGB combine with Luminance layering. Color calibration - eXcalibrator. The Luminance construction was the Luminance exposures. Color saturation in LAB color.    Native image size - 3354x2529.  Final Image size is approximately 2800x2100.

North is up in this image. This field lies within the constellation of Virgo. NGC 4762 is the large edge-on galaxy in the upper left. Other NGC objects in this field are NGC 4754, 4733, 4694. Visual observers sometimes refer to NGC 4762 as a "line in the sky". As can be seen in this image, there is a bright, virtually edge on view of the galactic disk with noticeably absent dust lanes. The central bulge is barely noticeable- but for the extended plumes seen in this image, it is understandable how this object appears as a "line in the sky".  Also in this image is the distant Abell 1618 cluster of galaxies. By redshift estimate, the distance is over 2 billion light years. There are other background / foreground galaxies in this image. There are two nearby dwarf galaxies that are barely visible in this image. These objects and some of the bright stars are identified in the annotated image.  Horizontal FOV is 85'

Image center is approximately - Equatorial 2000: RA: 12h 49m 58s Dec: +1115'47"


All images and content remain the property of Jim Thommes - copyright 2003 - 2017

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