Peculiar Arp 214, NGC3729 and HG 56 galaxies: Processing RASC 0.4 m robotic telescope LRGBHa data (Rick Veregin)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: NGC 3718 · NGC 3729 · PGC 2423714 · PGC 2425719 · PGC 2431209 · PGC 2432523 · PGC 2432563 · PGC 2437341 · PGC 2439126 · PGC 2440787 · PGC 35609 · PGC 35615 · PGC 35618 · PGC 35620 · PGC 35631

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Peculiar Arp 214, NGC3729 and HG 56 galaxies: Processing RASC 0.4 m robotic telescope LRGBHa data

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Peculiar Arp 214, NGC3729 and HG 56 galaxies: Processing RASC 0.4 m robotic telescope LRGBHa data

Arp 214 or NGC 3718 is an amazing S-shaped distorted, barred and active spiral galaxy that is probably both a Seyfert type 1 galaxy, with regions of ionized hydrogen and a LINER galaxy, whose nucleus presents an emission spectrum characterized by broad lines of weakly ionized atoms. In any event it has an active galactic nucleus (AGN) and likely a massive black hole at its center. NGC 3718 is located about 52 million light years from us in the Ursa Major Cluster. Its peculiar shape is likely due to gravitational interaction with the spiral galaxy NGC 3729, which is only 150,000 light-years away from it. To complete the picture, the five interacting galaxies of the Hickson Group 56 add to the view, but are much farther out, 400 million light-years away. There are also many other background galaxies in the image.

My Processing
I calibrated, registered, and stacked all images in DeepSkyStacker. I did background correction, development stretch, HDR, deconvolution, multi-scale sharpening and initial color in StarTools. In Photoshop I used StarXterminator to separate stars, StarShrink on the star layer, NoiseXterminator separately on both stars and galaxies to remove noise, and then final color adjustments.

RASC Telescope Data
Taken May 2020 for a total of 13 hours - Lum: 4 hours, RGB: 4 hours, Ha: 5 hours
Luminance: 16 x 900s (1x1)
RGB: 8 each x 600s (2x2)
Ha: 8 x 1,800 s (1x1)
Flats, Darks, Biases (for Dark Flats) were also taken
Location: Sierra Remote Observatories, Auberry, California
Telescope: RCOS 16" f/8.9 (3550mm focal length)
CCD Camera: SBIG STX16803 16MP (4096 x 4096)
Mount: Paramount ME
Filters: SBIG LRGB and Ha (7nm)

The Royal Astronomical Society of Canada Robotic Telescope
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Status	Advanced success
Started	...
Astrometry.net job	6968775
PixInsight job	SL7IBCTIH5LZ635M09LN99802E08N7TZ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	11h32m26s.681
RA (top/left)	11h32m56s.299
RA (top/right)	11h35m08s.240
RA (bottom/right)	11h31m56s.912
RA (bottom/left)	11h29m46s.930

Dec (center)	+53°03′22″.11
Dec (top/left)	+52°39′10″.31
Dec (top/right)	+53°07′42″.45
Dec (bottom/right)	+53°27′32″.23
Dec (bottom/left)	+52°58′47″.73

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Peculiar Arp 214, NGC3729 and HG 56 galaxies: Processing RASC 0.4 m robotic telescope LRGBHa data

Peculiar Arp 214, NGC3729 and HG 56 galaxies: Processing RASC 0.4 m robotic telescope LRGBHa data

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Peculiar Arp 214, NGC3729 and HG 56 galaxies: Processing RASC 0.4 m robotic telescope LRGBHa data

Peculiar Arp 214, NGC3729 and HG 56 galaxies: Processing RASC 0.4 m robotic telescope LRGBHa data

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