Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  10 Cas  ·  NGC 7762  ·  NGC 7822  ·  The star 10Cas
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The Cosmic Questionmark (NGC7822) in HOO, JDJ
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The Cosmic Questionmark (NGC7822) in HOO

Getting plate-solving status, please wait...
The Cosmic Questionmark (NGC7822) in HOO, JDJ
Powered byPixInsight

The Cosmic Questionmark (NGC7822) in HOO

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Description

Imaged the 'Cosmic Questionmark' (NGC 7822, SH2-170) on the nights of December 19/20/22, 2021 and January 3/7/11/26, 2022.  Final image is a three panel mosaic from this data.  The brightest portion of this region is NGC7822, and the dot of the question mark is SH2-170.  This color version was generated using narrowband Ha and OIII data following the HOO color palette.

Imaged with Astrotech AT60 at F4.8 (288 mm focal length) using Astrotech ATRF60 field flattener/0.8x reducer, Optolong L-Enhance dual narrowband filter, and full spectrum modified Nikon D5300. Total integration time of ~7 hours for each panel of the mosaic:
NGC 7822 (upper): 84 subs at ISO400 x 300 sec
NGC 7822 (centered): 70 subs at ISO400 x 300 sec
SH2-170: 69 subs at ISO400 x 300 sec

Original version = HOO image (R=Ha, G=OIII, B=OIII)

Rev B = starless HOO image

Posting w/ Ha and OIII data:  https://astrob.in/qvh360/0/

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