Bipolar planetary NGC2346 (lowenthalm)

Celestial hemisphere: Southern · Constellation: Monoceros (Mon) · Contains: NGC 2346 · PK215+03.1 · TYC4815-2564-1 · TYC4815-2760-1 · TYC4815-3024-1 · TYC4815-3185-1 · TYC4815-3230-1 · TYC4815-3436-1 · TYC4815-3493-1 · TYC4815-3644-1 · TYC4815-3669-1 · V0651 Mon

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Bipolar planetary NGC2346

Acquisition type: Lucky imaging

Powered byPixInsight

Bipolar planetary NGC2346

Acquisition type: Lucky imaging

This lovely bi-polar planetary nebula in Monoceros is roughly 4700 light years away from us. I measured the size in this image to be about 158x66 arc seconds, putting the size of the object at 3.6 by 1.3 light years. The distance I am using is based on the parallax of the central star, Gaia DR2 3109444657456300288, which is an irregular variable star (alternate designation: V651 Monocerotis).

I shot the nebula with a tri-band narrowband Ha/OIII/Hb filter on my color camera over several nights when the object was visible and the seeing was good. I only captured a few images each night because the object was only visible between trees and my house for a little over an hour. I was slowed too by periods where seeing dropped out, causing sub-exposure rejection. I later captured star colors using only a UV/IR Cut filter on nights where seeing wasn't very good and then combined this data with stars in the green channel of the much sharper tri-band filter data using LRGB processing. This produced a final image with correct star colors. If I had only used the tri-band star data, the star colors would have been very distorted.

Each 6 minute RGB and image was a live-stack of 72 x 5 second images. The 16 tri-band were stacked into an image of the nebula and the 5 UV/IR Cut images were stacked for star colors. The star and nebula image were then combined as described above.

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Status	Advanced success
Started	...
Astrometry.net job	5558895
PixInsight job	BJ9NRUGGYL7QF20O23BGDSG0W6ZHVIUU
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	07h09m22s.129
RA (top/left)	07h09m51s.383
RA (top/right)	07h08m52s.524
RA (bottom/right)	07h08m52s.883
RA (bottom/left)	07h09m51s.743

Dec (center)	-00°48′26″.80
Dec (top/left)	-00°43′03″.52
Dec (top/right)	-00°43′11″.60
Dec (bottom/right)	-00°53′48″.58
Dec (bottom/left)	-00°53′41″.10

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Bipolar planetary NGC2346

Bipolar planetary NGC2346

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Bipolar planetary NGC2346

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