Lucy in the Sky - Abell 33 - the "Diamond Ring" Nebula in O3-RGB (Bill McLaughlin)

Celestial hemisphere: Southern · Constellation: Hydra (Hya) · Contains: HD83535 · HD83569 · PK238+34.1

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Lucy in the Sky - Abell 33 - the "Diamond Ring" Nebula in O3-RGB

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Lucy in the Sky - Abell 33 - the "Diamond Ring" Nebula in O3-RGB

The planetary nebula Abell 33 is located in Hydra and lies at a distance of about 2700 light years and is about 4.5 arcminutes in diameter. It is notable for the 7th magnitude star that appears superimposed on it's edge, giving it the name "diamond ring" nebula. Emissions are almost entirely O3 hence the teal color. Although not visible on most images of Abell 33, I was able to resolve that the central star is either a visual or an actual double with the secondary "central" star having a slightly reddish color.

Taken over 11 nights from March 17th to April 10th, 2024 from SkiesAway Observatory.

Imaged with N.I.N.A.
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Status	Advanced success
Started	...
Astrometry.net job	9792012
PixInsight job	XEL1FD134CL6BJTNKGH361TQSZ7OMGP5
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	09h39m07s.910
RA (top/left)	09h38m38s.541
RA (top/right)	09h38m40s.214
RA (bottom/right)	09h39m37s.237
RA (bottom/left)	09h39m35s.543

Dec (center)	-02°47′59″.48
Dec (top/left)	-02°37′25″.46
Dec (top/right)	-02°58′50″.19
Dec (bottom/right)	-02°58′33″.36
Dec (bottom/left)	-02°37′08″.91

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Lucy in the Sky - Abell 33 - the "Diamond Ring" Nebula in O3-RGB

Lucy in the Sky - Abell 33 - the "Diamond Ring" Nebula in O3-RGB

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Lucy in the Sky - Abell 33 - the "Diamond Ring" Nebula in O3-RGB

Lucy in the Sky - Abell 33 - the "Diamond Ring" Nebula in O3-RGB

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