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NGC 1087 NGC 1090 in Cetus



Scope: Celestron 9.25 Edge 235 mm at f/7, Location: Blair Valley, Anza Borrego Desert, CA   17 November 2015  Camera: ST8300M (Baader LRGB filters)

Exposure: Exposure: 16 x 9 min (2x2 bin)  and 6 x 10 min (1x1) IR/UV block exposures;  8 x 4.5 min (3x3 bin) RGB exposures.

Processing: Data Collection -  Sequence Generator Pro (as FITs).  Calibrated, stacked (Sigma Kappa Combine) in Deep Sky Stacker, L - RGB channel registration, equalization, central gradient removal - Astroart.  Curves, Levels, and Luminance development, RGB combine - Images Plus. Finishing  - Photoshop. Color calibration with eXcalibrator. This image uses UV/IR Block for the Luminance channel and then a LRGB combine with Luminance layering.  Saturation in LAB color.   Final Image size processed at approximately 3352x2532 cropped and resized to 2400x1800.

North is to the right in this image. There are a number of galaxies in this field; the two dominant ones are NGC 1087 on the left and NGC 1090 on the right.  At the upper right is a smaller galaxy, NGC 1094. These galaxies are in order at increasing distances. NGC 1087 is about 54 million light years; NGC 1090 about 110 million light years; NGC 1094 about 200 million light years.  The other smaller galaxies in the annotated image range form 550 million light years up to about  billion light years as estimated by redshift. These galaxies are identified  and highlighted in the annotated image.  This image replaces an earlier image that can be seen in the Archives here. The Horizontal FOV is 38' 

Image center is approximately - Equatorial 2000: RA: 02h 46m 49.7s Dec: -0023'43"


All images and content remain the property of Jim Thommes - copyright 2003 - 2016 copyright 2003 - 2012

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