Abell 13 (Eddie Bagwell)

Celestial hemisphere: Northern · Constellation: Orion (Ori) · Contains: PK204-08.1

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Abell 13

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Abell 13

Abell 13
PK 204-8.1

Abell 13 is highly evolved planetary nebula in Orion. It is sometimes known as the Orion Ring Nebula because it's morphology resembles the better known Ring Nebula (M57). In both cases their oval shape is believed to be a result of them being Bipolar Nebulae viewed offset from their axis, making their ring structure appear oval. Abell 13 is 2.9 arc minutes in angular size and around 3,500 light years away.

Fun Fact: It was first catalogued as Abell 9 by George Abell in 1955, but re-numbered as Abell 13 in his 1966 paper.

Note: I acquired the same amount of O3 as Ha hoping to find the oxygen hiding within the nebula. Semi-successful as the oxygen was extremely faint and had to apply an extra histogram stretch to bring it out in the Original image. I wasn't pleased with the result so I reprocessed the data Revision E (final) without the extra histogram stretch.

Thanks, Eddie

Original
Final
E

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Status	Advanced success
Started	...
Astrometry.net job	6764301
PixInsight job	4W6OHKQ66QOMTSXGBSWC5ONT1LR7A1SM
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h04m48s.320
RA (top/left)	06h05m37s.239
RA (top/right)	06h04m19s.971
RA (bottom/right)	06h03m59s.325
RA (bottom/left)	06h05m16s.633

Dec (center)	+03°56′35″.15
Dec (top/left)	+03°59′48″.27
Dec (top/right)	+04°07′03″.61
Dec (bottom/right)	+03°53′21″.45
Dec (bottom/left)	+03°46′06″.14

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Abell 13

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