Abell 73 (Gary Imm)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: PK095+07.1

Abell 73

This faint planetary nebula is located 6000 light years away in the constellation of Cepheus at a declination of +57 degrees. It is a magnitude 17 PN that spans 1.4 arc-minutes in our apparent view, which means that it has a diameter of 2.4 light years. I could find no documentation on this interesting object.

Like many PN, the outer rim is stronger in HII while the inner section is stronger in OIII. The PN is a bit distorted, as if there is a mechanism causing some rotation of the overall system. I like the internal structure, where it looks like there are 2 point symmetric lobes of HII intruding upon the central region.

I see a very faint smudge in the center of the PN which could be the progenitor. Or maybe I just need to clean my monitor.

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Title: Abell 73

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Status	Advanced success
Started	...
Astrometry.net job	5353321
PixInsight job	U5YXL5WCGLLJJGA7TFAXSRZ6WXG70JHT
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h56m26s.801
RA (top/left)	20h55m07s.290
RA (top/right)	20h57m47s.850
RA (bottom/right)	20h57m47s.213
RA (bottom/left)	20h55m05s.986

Dec (center)	+57°26′04″.28
Dec (top/left)	+57°18′20″.75
Dec (top/right)	+57°18′26″.100
Dec (bottom/right)	+57°33′44″.67
Dec (bottom/left)	+57°33′38″.25

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