Sh2-263 Strawberry, Raspberry or Angelfish Nebula - Antlia Triband Test (Mau_Bard)

Sh2-263 Strawberry, Raspberry or Angelfish Nebula - Antlia Triband Test

After three months of cloudy weather, last night eventually we enjoyed a few hours of clean sky, unfortunately with a nearly full moon in the middle of the sky.
Under these less than ideal conditions, I had the opportunity to test my new Antlia Tri-band filter, which is basically a very open Ha OIII dual-band filter with an additional window in the blue color spectrum.

My sky is a Bortle 7/8 (in the darkest nights). Moon was 60° away from the nebula. The target itself is not an easy one, because it contains a lot of dust is in the field, in addition to the main hybrid emission/reflection nebula. Exposure time was limited because of the moon.

The dusty background was, as expected, not fully captured, in part because of the filter structure, and for the other part because of the relevant moon illumination, not to forget the short integration time. Al in all, I am positively impressed by this filter, showing no reflections and crisp stars and able to intercept some reflection nebulosity. Gradients and vignetting were present and required some additional processing to be tamed, but with my rig this is inevitable in a polluted and "moony" sky.

*

Sh2-263

Galactic Coordinates: (194.65°, -15.62°)
This HII region and reflection nebula is ionised by the B0-B1 V star HD 34989. Avedisova places it in star formation region SFR 195.06-11.99 as part of the Lambda Orionis ring complex along with Sh 2-264, Sh 2-265 and the dark nebula LDN 1582 (Barnard 32).
(from galaxymap.org)

Imaged with N.I.N.A.
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Duo-band, Tri-band, and Quad-band Imaging
Austria Astrophotography

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Status	Advanced success
Started	...
Astrometry.net job	7127154
PixInsight job	I1WB2WNJ2DT4J7KHIA09EB3Y4I3027J4
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h21m45s.620
RA (top/left)	05h24m26s.740
RA (top/right)	05h19m05s.348
RA (bottom/right)	05h19m03s.894
RA (bottom/left)	05h24m24s.303

Dec (center)	+08°23′37″.77
Dec (top/left)	+08°49′49″.94
Dec (top/right)	+08°50′31″.60
Dec (bottom/right)	+07°57′22″.68
Dec (bottom/left)	+07°56′41″.98

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