Abell 72 with Galaxies (Bill McLaughlin)

Abell 72 with Galaxies

Planetary nebula Abell 72 (PK 059+18.1) is located in Delphinus. It is both interesting due to it's fine network of filamentary structure and somewhat dull due to emissions that are almost entirely in the O3, hence the distinct teal color. It is about 5750 light years from earth and appx. 2 light years across, occupying about 3 arc minutes on it's longest axis.

One of the more interesting and challenging aspects of imaging Abell 72 is due to the presence of several distant galaxies in the image, which are often missed or rendered almost invisible due to the large difference in brightness between these and the nebula. Most notable is PGC 65491, which is very close to line of sight with Abell 72. I did my best to display these.

Data was acquired over 14 nights between August 23rd and November 5th, 2023 from Skiesaway Observatory.

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Title: Abell 72 with Galaxies

Description: Planetary nebula Abell 72 (PK 059+18.1) is located in Delphinus. It is both interesting due to it's fine network of filamentary structure and somewhat dull due to emissions that are almost entirely in the O3, hence the distinct teal color. It is about 5750 light years from earth and appx. 2 light years across, occupying about 3 arc minutes on it's longest axis.

One of the more interesting and challenging aspects of imaging Abell 72 is due to the presence of several distant galaxies in the image, which are often missed or rendered almost invisible due to the large difference in brightness between these and the nebula. Most notable is PGC 65491, which is very close to line of sight with Abell 72. I did my best to display these.

Data was acquired over 14 nights between August 23rd and November 5th, 2023 from Skiesaway Observatory.

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Narrowband imaging
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Status	Advanced success
Started	...
Astrometry.net job	8700149
PixInsight job	U7Q8EM57ZLGT26G0P7IJS5O3FOVL291E
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	20h49m48s.811
RA (top/left)	20h50m30s.119
RA (top/right)	20h49m06s.123
RA (bottom/right)	20h49m07s.650
RA (bottom/left)	20h50m31s.401

Dec (center)	+13°29′46″.72
Dec (top/left)	+13°40′08″.79
Dec (top/right)	+13°39′47″.60
Dec (bottom/right)	+13°19′24″.73
Dec (bottom/left)	+13°19′45″.100

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