NGC 7463, NGC 7464, NGC 7465
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ON IMAGE FOR FULL SIZE VIEW (2800x2100)
Scope:
Celestron 9.25 Edge 235 mm at f/7, Location: DAA Observatory, Shelter Valley CA,
4 September 2018
Camera: ST8300M (Baader LRGB filters) Exposure:
Exposure: 16 x 12 min (2x2 bin) exposure with IR/UV Block filter, 10 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. This
image features a trio of NGC galaxies that are likely interacting - NGC 7463,
7464, 7465. These galaxies are central in this image. The face-on galaxy, NGC
7465, has an interesting classification - (R')SB0^0?(s) - barely detectable
outer pseudo-ring barred spiral. Outlying this galaxy trio grouping is UGC
12313 - an edge on galaxy that lies about the same distance as the NGC
trio. Also, galaxy UGC 12321 may be related in that it has a similar distance
(by redshift estimate) as the other galaxies, however, this galaxy has a widely
discrepant redshift independent distance estimate. Finally, there are several
background galaxies with distance estimates around the 1 billion light year
distance. These galaxies are identified in the annotated
image.. There are also a number of background galaxies in this field
not identified in the annotation. Horizontal FOV is
approximately 38 arc minutes (0.81 arcsec/pix image scale on the full size
image). Image center is located approximately - Equatorial 2000: RA: 23h 02m 00s Dec: +15°58'00"
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