Ambartsumian's Knot / ARP 105 Close Up (Dale Penkala)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: NGC 3550 · NGC 3552 · NGC 3553 · NGC 3554 · NGC 3558 · NGC 3561 · the Guitar

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Ambartsumian's Knot / ARP 105 Close Up

Revision title: Tried another crop

Powered byPixInsight

Ambartsumian's Knot / ARP 105 Close Up

Revision title: Tried another crop

Well like always I wish I would have been able to collect more data on this close up of Apr 105 but I've lost patience with Mother Nature so I decided to go ahead and process this. A total of 18 1/2hrs collected with UV/IR Cut filter and 1 night of L-Pro to help out on gradient with the moon.

I shot this image in a "wide field" back a couple of weeks ago https://www.astrobin.com/zq0c6v/ and because of the total number of galaxies I decided to use my 12" to see what I could get with it. I'm really pleased with NGC 3561 & 61a & b as that is the spotlight here in this image. In my research I've found that some call this grouping the "guitar" as these 3 give it a similar shape to the instrument.

While located in the constellation Ursa Major its stated on Sky Safari as being 416 million light years from our solar system and is 14th magnitude. There are a ton of small dwarf galaxies that can be seen but this image in my opinion is best look at in "Full Resolution"

I've only found a few what I'd call "good images" of this object and I'm pleased to present this to all of you!

While its not the best I'm happy with it and I hope you enjoy it as well!

Thanks for looking!

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Title: Cropped to Arp 105

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Title: Tried another crop

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Status	Advanced success
Started	...
Astrometry.net job	9570080
PixInsight job	GEAXSWMMO7JPMQ9ODVOQW3515MPJYXMC
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	11h10m52s.698
RA (top/left)	11h12m11s.950
RA (top/right)	11h10m47s.310
RA (bottom/right)	11h09m33s.790
RA (bottom/left)	11h10m58s.435

Dec (center)	+28°44′01″.44
Dec (top/left)	+28°45′02″.41
Dec (top/right)	+29°01′19″.61
Dec (bottom/right)	+28°42′56″.76
Dec (bottom/left)	+28°26′40″.93

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Ambartsumian's Knot / ARP 105 Close Up

Revision title: Tried another crop

Ambartsumian's Knot / ARP 105 Close Up

Revision title: Tried another crop

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Ambartsumian's Knot / ARP 105 Close Up

Revision title: Tried another crop

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