NGC 3906


Dan Crowson
 

NGC 3906 (UGC 6797, PGC 36953 and others) is an odd barred spiral located approximately 64.6 million light-years away in Ursa Major. A 2015 paper here (https://arxiv.org/pdf/1506.05153.pdf) talks about theories for the offset of the bar.

 

Luminance – 27x600s – 270 minutes – binned 1x1

RGB – 8x300s – 40 minutes each – binned 2x2

 

390 minutes total exposure – 6 hours 30 minutes

 

Imaged January 10th and February 10th and 11th, 2021 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.

 

LRGB - https://www.flickr.com/photos/dcrowson/50937457137/sizes/l/

 

Dan

----          
Dan Crowson                          dcrowson@...
Dardenne Prairie MO               http://www.crowson.com

 


Gregg Ruppel
 

That’s interesting...Thanks for sharing.

Gregg

Visit my astronomy & astrophotography site
www.greggsastronomy.com

On Feb 12, 2021, at 5:46 PM, Dan Crowson <dcrowson@...> wrote:



NGC 3906 (UGC 6797, PGC 36953 and others) is an odd barred spiral located approximately 64.6 million light-years away in Ursa Major. A 2015 paper here (https://arxiv.org/pdf/1506.05153.pdf) talks about theories for the offset of the bar.

 

Luminance – 27x600s – 270 minutes – binned 1x1

RGB – 8x300s – 40 minutes each – binned 2x2

 

390 minutes total exposure – 6 hours 30 minutes

 

Imaged January 10th and February 10th and 11th, 2021 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.

 

LRGB - https://www.flickr.com/photos/dcrowson/50937457137/sizes/l/

 

Dan

----          
Dan Crowson                          dcrowson@...
Dardenne Prairie MO               http://www.crowson.com

 


Bernard Miller
 

Nice job Dan. Did you consider posting a closer view?

 

Bernard

 

 

From: DarkSkyNewMexico@groups.io On Behalf Of Dan Crowson
Sent: Friday, February 12, 2021 5:46 PM
To: 'Dan Crowson' <dcrowson@...>
Subject: [DarkSkyNewMexico] NGC 3906

 

NGC 3906 (UGC 6797, PGC 36953 and others) is an odd barred spiral located approximately 64.6 million light-years away in Ursa Major. A 2015 paper here (https://arxiv.org/pdf/1506.05153.pdf) talks about theories for the offset of the bar.

 

Luminance – 27x600s – 270 minutes – binned 1x1

RGB – 8x300s – 40 minutes each – binned 2x2

 

390 minutes total exposure – 6 hours 30 minutes

 

Imaged January 10th and February 10th and 11th, 2021 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.

 

LRGB - https://www.flickr.com/photos/dcrowson/50937457137/sizes/l/

 

Dan

----          
Dan Crowson                          dcrowson@...
Dardenne Prairie MO               http://www.crowson.com

 




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Dan Crowson
 

Bernard,

 

I could but seeing has been terrible recently at DSNM so my image doesn’t hold up well.

 

Dan

 

----          
Dan Crowson                          dcrowson@...
Dardenne Prairie MO               http://www.crowson.com

 

From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Bernard Miller
Sent: Friday, February 12, 2021 7:47 PM
To: DarkSkyNewMexico@groups.io
Subject: Re: [DarkSkyNewMexico] NGC 3906

 

Nice job Dan. Did you consider posting a closer view?

 

Bernard

 

 

From: DarkSkyNewMexico@groups.io On Behalf Of Dan Crowson
Sent: Friday, February 12, 2021 5:46 PM
To: 'Dan Crowson' <dcrowson@...>
Subject: [DarkSkyNewMexico] NGC 3906

 

NGC 3906 (UGC 6797, PGC 36953 and others) is an odd barred spiral located approximately 64.6 million light-years away in Ursa Major. A 2015 paper here (https://arxiv.org/pdf/1506.05153.pdf) talks about theories for the offset of the bar.

 

Luminance – 27x600s – 270 minutes – binned 1x1

RGB – 8x300s – 40 minutes each – binned 2x2

 

390 minutes total exposure – 6 hours 30 minutes

 

Imaged January 10th and February 10th and 11th, 2021 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.

 

LRGB - https://www.flickr.com/photos/dcrowson/50937457137/sizes/l/

 

Dan

----          
Dan Crowson                          dcrowson@...
Dardenne Prairie MO               http://www.crowson.com

 

 


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