Deep into NGC7822 (Rouz Astro Reducer-OAG Kit)

Deep into NGC7822 (Rouz Astro Reducer-OAG Kit)

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Click on the Image to see Full Size

Equipment

Imaging Telescopes Or Lenses : Planewave CDK14 (Rouz Astro Reducer-OAG Kit)
Imaging Cameras : QHYCCD QHY600PH M
Mounts : Astro-Physics 1100GTO
Filters : Chroma H-alpha 3nm Bandpass 50 mm · Chroma OIII 3nm Bandpass 50 mm · Chroma SII 3nm Bandpass 50 mm
Accessories : Optec Gemini Rotating Focuser · Optec Sagitta Off-Axis Guider · Planewave Reducer 0.66x CDK12.5-14-17
Software : Pleiades Astrophoto PixInsight · Stefan Berg Nighttime Imaging ‘N’ Astronomy (N.I.N.A. / NINA)

Acquisition details

Dates : Oct. 23, 2022
Frames : Chroma H-alpha 3nm Bandpass 50 mm: 110×600″(18h 20′) (gain: 56.00) -10°C
Chroma OIII 3nm Bandpass 50 mm: 77×600″(12h 50′)
Chroma SII 3nm Bandpass 50 mm: 72×600″(12h)
Integration : 43h 10′
Avg. Moon age : 27.52 days
Avg. Moon phase : 4.51%

Description

A young stellar nursery some 3000 light years from us. Located in Cepheus, this complex is also known as SH2-171.

This image was captured with the CDK14 with a custom configured imaging train that enables an off axis guider to be used in conjunction with the dedicated Planewave 0.66x focal reducer.
I wrote an article on the custom setup here:

A significant total integration time of 44 hours with the low noise QHY600m (gain56) and 3nm Chroma filters allowed a good amount of faint details to be extracted. The complex clouds seen in the background were better illustrated here with the extra SNR.

I also attempted this image with the CDK12.5 previously with a smaller sensor and less integration time; However, this CDK14 image with the large IMX455 exhibits better resolution and SNR. This image has been downsampled significantly from the the captured scale of 0.46″/pixel.

Previous CDK12.5 version:

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Below is a starless version to emphasize the nebulosity:

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