NGC 6946 and NGC 6939: Fireworks Galaxy and the Ghost Bush Cluster (Chris Sullivan)

Celestial hemisphere: Northern · Constellation: Cepheus (Cep) · Contains: Fireworks Galaxy · NGC 6939 · NGC 6946

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NGC 6946 and NGC 6939: Fireworks Galaxy and the Ghost Bush Cluster

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NGC 6946 and NGC 6939: Fireworks Galaxy and the Ghost Bush Cluster

This is another dual focal length project with almost all the data for the Fireworks Galaxy (approx. 28.7 hours) coming from this image that I shot with my 8" Ritchey Chretien in 2019. The starfield is approximately 11.75 hours with the Sharpstar f/2.8 150 HNT. I tried giving this a lot of luminance frames to see if it would be possible to get some interstellar dust to show up, but my skies are apparently too bright for that. Edit: Victor Van Puyenbroeck's comment led me to re-evaluate my data and it looks like it definitely did end up in my data.

(Stellarium is also telling me that NGC 6939 is also known as the Flying Geese Cluster and Silk Fan Cluster. Wikipedia also refers to it as Melotte 231)

I started grad school and it's overwhelming. I really should be doing classwork now, but I needed some me time.

Original
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B
C

B

Description: Victor Van Puyenbroeck's comment below led me to investigate my lum stack again for some galactic cirrus. I'm not entirely convinced all 100% of this is cirrus (some of it could be gradient), but some of it (maybe even most?) definitely is real. Thank you Victor!

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C

Description: This image was selected as the banner of the QHYCCD website on July 2.

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ZWO ASI183/QHY183
Light Polluted skies
Fast Newtonians
CMOS Imagers
Cloudy Nights
QHY Users Group

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Status	Basic success
Started	...
Astrometry.net job	4683602
PixInsight job	n/a
PixInsight queue size	n/a
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NGC 6946 and NGC 6939: Fireworks Galaxy and the Ghost Bush Cluster

NGC 6946 and NGC 6939: Fireworks Galaxy and the Ghost Bush Cluster

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NGC 6946 and NGC 6939: Fireworks Galaxy and the Ghost Bush Cluster

NGC 6946 and NGC 6939: Fireworks Galaxy and the Ghost Bush Cluster

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C

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