Abell 12 revisited (lowenthalm)

Celestial hemisphere: Northern · Constellation: Orion (Ori) · Contains: 61 mu. Ori · PK198-06.1 · The star μOri

Image of the day 02/21/2020

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Abell 12 revisited

Image of the day 02/21/2020

Powered byPixInsight

Abell 12 revisited

Well, I have imaged this object before and posted it, but only a single very short exposure. I managed to capture a couple four minute live stacks of 240 one second exposures for a total of 8 minutes before it got too close to the side of my house. This object is actually pretty bright, so 8 minutes was enough to show it pretty well hidden next to a bright star (4th magnitude Mu Orionis).

I was also able to construct a model of the star glow to show the nebula a little more clearly with better color. That version if the image is in the inset. I pasted back the star andt he flow right near it from the original image into the glow subtracted image since the star itself looked pretty bizzare after the glow subtraction procedure.

As I noted in my original post, the nebula looks a lot like a lens flare or filter reflection artifact, and is probably tough to pick up visually despite its brightness (12.39 magnitude). Its not surprising that it was omitted from both the IC and NGC catalogs.

Astrophotography with Dobson
Suburban Astrophotography
Planetary Nebulae
ZWO ASI 294MC PRO

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Planetary Nebula

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Status	Advanced success
Started	...
Astrometry.net job	3245303
PixInsight job	6JAHH55JTFEY9WNK7QY2HFNRU3JM0W8O
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	06h02m22s.150
RA (top/left)	06h03m04s.789
RA (top/right)	06h01m42s.577
RA (bottom/right)	06h01m39s.251
RA (bottom/left)	06h03m01s.366

Dec (center)	+09°38′45″.29
Dec (top/left)	+09°45′05″.20
Dec (top/right)	+09°46′17″.88
Dec (bottom/right)	+09°32′25″.35
Dec (bottom/left)	+09°31′13″.11

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Image of the day 02/21/2020

Abell 12 revisited

Image of the day 02/21/2020

Abell 12 revisited

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Image of the day 02/21/2020

Abell 12 revisited

Image of the day 02/21/2020

Abell 12 revisited

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