Cassiopeia wide field - 120mm SLR lens (Tom Gray)

Celestial hemisphere: Northern · Constellation: Cassiopeia (Cas) · Contains: 2 Cas · 4 Cas · Bubble Nebula · HD219286 · HD219287 · HD219634 · HD219854 · HD219978 · HD220016 · HD220056 · HD220057 · HD220074 · HD220102 · HD220130 · HD220147 · HD220167 · HD220180 · HD220369 · HD220760 · HD220770 · HD220819 · HD220999 · HD221037 · HD221038 · HD221039 · HD221143 · HD221393 · HD221406 · HD221438 · HD221584 · And 47 more.

Cassiopeia wide field - 120mm SLR lens

I’m am stuck with bright, easy to find objects while I await the return of my Argo Navis DSC from down under, where it has been very generously repaired by Gary Kopff of Wildcard Innovations.

This region of Cassiopeia bordering Cepheus is rich with emission nebulae, including the famous bubble, and ‘lobster claw’.

300s exposures using an Optolong L-eNhance filter have brought out the nebulosity, and even a small bubble, in my DSI III pro/Pentax 120 mm SLR lens combo.

Captured using Meade Envisage, aligned and stacked in ASTAP, with minimal processing in Startools to dim the star field a little.

Given a high haze, and passing cloud, I am pleased to have a wide field of this spectacular region, and pleasantly surprised at the quality of this image, given the significant under sampling.

Final
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B

B

Description: Annotated in ASTAP

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Only Monochromatic (Black and White!!!!! NO color, please!)
Altair Astro 183 M/C Hypercams
Optolong L-eNhance filter
Narrowband imaging
UK Astro-Imaging
Camera Lens Astrophotography

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Status	Advanced success
Started	...
Astrometry.net job	5012200
PixInsight job	AIJ11NWB3G9LGVBTVTA9R988RFMV2JFB
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	23h21m00s.6
RA (top/left)	23h34m26s.5
RA (top/right)	23h06m49s.4
RA (bottom/right)	23h09m17s.7
RA (bottom/left)	23h33m30s.4

Dec (center)	+61°26′58″
Dec (top/left)	+63°30′02″
Dec (top/right)	+63°25′26″
Dec (bottom/right)	+59°19′31″
Dec (bottom/left)	+59°23′36″

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Cassiopeia wide field - 120mm SLR lens

Cassiopeia wide field - 120mm SLR lens

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Cassiopeia wide field - 120mm SLR lens

Cassiopeia wide field - 120mm SLR lens

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