Abell 12 is not a lens flare (lowenthalm)

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

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Abell 12 is not a lens flare

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Abell 12 is not a lens flare

At first I thought I was just seeing a lens flare, then as the stacking progressed, I could see the lens flare had a faint central blue star. That's no lens flare, that's a planetary nebula.

The image is a bit noisy because of my suburban sky glow. I should re-image this with my IDAS light pollution filter. The star colors, diffraction patterns and such came out quite nicely here. Way off to the left in the uncropped version of the image, there were three faint galaxies too, but not interesting enough to make me want the image to be any larger than it already is.

Considering how well it competes with the glow of Mu Orionis I am thinking that this might be one of the few easily visually observable Abell planetaries at magnitude 12.4. Most Abell planetaries are crazy dim. You would just have to get Mu just out of the field of view or block it with an occulting bar. At 40 arc seconds across, it has a fairly high surface brightness.

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Planetary Nebula

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Status	Advanced success
Started	...
Astrometry.net job	2500492
PixInsight job	JLU3B8K1KQEFHF7CVD5F9CLVZFWE94Z1
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	06h02m23s.973
RA (top/left)	06h02m58s.598
RA (top/right)	06h01m39s.813
RA (bottom/right)	06h01m49s.424
RA (bottom/left)	06h03m08s.123

Dec (center)	+09°38′46″.32
Dec (top/left)	+09°47′59″.17
Dec (top/right)	+09°45′00″.90
Dec (bottom/right)	+09°29′34″.60
Dec (bottom/left)	+09°32′31″.65

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Abell 12 is not a lens flare

Abell 12 is not a lens flare

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Abell 12 is not a lens flare

Abell 12 is not a lens flare

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