Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  1 Cas  ·  2 Cas  ·  32 iot Cep  ·  4 Cas  ·  5 tau Cas  ·  6 Cas  ·  AR Cas  ·  Bubble nebula  ·  IC 1470  ·  M 52  ·  NGC 7380  ·  NGC 7419  ·  NGC 7423  ·  NGC 7429  ·  NGC 7510  ·  NGC 7538  ·  NGC 7635  ·  NGC 7654  ·  NGC 7788  ·  NGC 7822  ·  PK106-04.1  ·  PK107-00.1  ·  PK107-02.1  ·  PK107-02.2  ·  PK108+00.1  ·  PK108-05.1  ·  PK110+01.1  ·  PK110-00.1  ·  PK110-01.1  ·  PK111+06.1  ·  And 43 more.
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The Bubble, the Lobster Claw, and Friends at 85 mm in Ha, JDJ
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The Bubble, the Lobster Claw, and Friends at 85 mm in Ha

Getting plate-solving status, please wait...
The Bubble, the Lobster Claw, and Friends at 85 mm in Ha, JDJ
Powered byPixInsight

The Bubble, the Lobster Claw, and Friends at 85 mm in Ha

Equipment

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Acquisition details

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Description

This wide field image of the region around the Bubble Nebula (Sh2-162) and the Lobster Claw (Sh2-157) was captured over the course of three nights in January 2020 using a short telephoto lens and dual narrowband filter. There are a few other interesting objects at the periphery like the Wizard Nebula at the bottom of the image. This one took a bit of work since I only get about an hour of useful imaging at this time of year and the field of view passing by nearby light pollution sources and obstructions. I really love the Lobster Claw so I was happy to get a passable final result.

Imaged with 85mm/F1.4 Rokinon at F/2, STC Duo Narrowband Clip Filter, and full spectrum modified Nikon D5300.

Pre-processed using PixInsight Batch Pre-Processing (BPP) script. Images calibrated using darks, bias, and flats. Extracted red/green/blue channels using BatchChannelExtraction script. R, G, & B channels registered and stacked independently using StarAlighment and Integration. R channel data gives the Ha image. Averaged G & B channels using Pixelmath to generate OIII image. Total integration time of ~2.5 hours using 38 subs at ISO200x240 sec. R and Average of G+B channels individually post-processed in Pixinsight: Cropped, gradient removal with ABE, MLT for noise reduction, stretched using masked stretch, Curves Transformation, TGVDenoise for noise reduction, HDR transform, Local histogram transform, morphological transform to shrink stars.

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The Bubble, the Lobster Claw, and Friends at 85 mm in Ha, JDJ

In these collections

85mm Rokinon