Sharpless 112


Dan Crowson
 

Sharpless 112 (DWB 174 and others) is a nebula ionized by BD+45 3216. This one is located approximately 5,675 light-years away in Cygnus.

 

Ha – 24x1800s – 720 minutes – binned 1x1

Luminance – 24x600s – 240 minutes – binned 1x1

RGB – 10:8:9x300s – 50:40:45 minutes each – binned 2x2

 

1095 minutes total exposure –  18 hours 15 minutes

 

Imaged over ten nights in October, 2020 and May, June and October, 2021 at 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/51807523792/sizes/l/

HaRGB - https://www.flickr.com/photos/dcrowson/51808596948/sizes/l/

 

 

Dan

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

 


Bernard Miller
 

Dan,

 

Really nice color on this one.

 

Bernard

 

 

From: DarkSkyNewMexico@groups.io On Behalf Of Dan Crowson
Sent: Saturday, January 8, 2022 4:04 PM
To: 'Dan Crowson' <dcrowson@...>
Subject: [DarkSkyNewMexico] Sharpless 112

 

Sharpless 112 (DWB 174 and others) is a nebula ionized by BD+45 3216. This one is located approximately 5,675 light-years away in Cygnus.

 

Ha – 24x1800s – 720 minutes – binned 1x1

Luminance – 24x600s – 240 minutes – binned 1x1

RGB – 10:8:9x300s – 50:40:45 minutes each – binned 2x2

 

1095 minutes total exposure –  18 hours 15 minutes

 

Imaged over ten nights in October, 2020 and May, June and October, 2021 at 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/51807523792/sizes/l/

HaRGB - https://www.flickr.com/photos/dcrowson/51808596948/sizes/l/

 

 

Dan

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

 




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Gregg Ruppel
 

Nice work, Dan.  I think you could push the saturation a bit on the Ha version.  Thanks for sharing.

Gregg

Visit my astronomy & astrophotography site
www.greggsastronomy.com

On Jan 8, 2022, at 3:04 PM, Dan Crowson <dcrowson@...> wrote:



Sharpless 112 (DWB 174 and others) is a nebula ionized by BD+45 3216. This one is located approximately 5,675 light-years away in Cygnus.

 

Ha – 24x1800s – 720 minutes – binned 1x1

Luminance – 24x600s – 240 minutes – binned 1x1

RGB – 10:8:9x300s – 50:40:45 minutes each – binned 2x2

 

1095 minutes total exposure –  18 hours 15 minutes

 

Imaged over ten nights in October, 2020 and May, June and October, 2021 at 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/51807523792/sizes/l/

HaRGB - https://www.flickr.com/photos/dcrowson/51808596948/sizes/l/

 

 

Dan

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

 


Dan Crowson
 

Thanks Gregg. I wasn’t real happy with the Ha version so I held out for luminance. With few exceptions, it seems like my camera is weak in Ha and I think it has a better QE than yours.

 

I tried to saturate after reading this but it seemed to make the nebula a very odd red and pulled the red out of the background.


Dan

 

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

 

From: DarkSkyNewMexico@groups.io <DarkSkyNewMexico@groups.io> On Behalf Of Gregg Ruppel
Sent: Saturday, January 8, 2022 5:48 PM
To: DarkSkyNewMexico@groups.io
Subject: Re: [DarkSkyNewMexico] Sharpless 112

 

Nice work, Dan.  I think you could push the saturation a bit on the Ha version.  Thanks for sharing.

Gregg

 

Visit my astronomy & astrophotography site



On Jan 8, 2022, at 3:04 PM, Dan Crowson <dcrowson@...> wrote:



Sharpless 112 (DWB 174 and others) is a nebula ionized by BD+45 3216. This one is located approximately 5,675 light-years away in Cygnus.

 

Ha – 24x1800s – 720 minutes – binned 1x1

Luminance – 24x600s – 240 minutes – binned 1x1

RGB – 10:8:9x300s – 50:40:45 minutes each – binned 2x2

 

1095 minutes total exposure –  18 hours 15 minutes

 

Imaged over ten nights in October, 2020 and May, June and October, 2021 at 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/51807523792/sizes/l/

HaRGB - https://www.flickr.com/photos/dcrowson/51808596948/sizes/l/

 

 

Dan

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

 


Gregg Ruppel
 

There is a significant amount of fainter Ha in the background:

http://greggsastronomy.com/IMAGES/Sh2-112_HaRGB.jpg

Gregg

Visit my astronomy & astrophotography site
www.greggsastronomy.com

On Jan 8, 2022, at 3:59 PM, Dan Crowson <dcrowson@...> wrote:



Thanks Gregg. I wasn’t real happy with the Ha version so I held out for luminance. With few exceptions, it seems like my camera is weak in Ha and I think it has a better QE than yours.

 

I tried to saturate after reading this but it seemed to make the nebula a very odd red and pulled the red out of the background.


Dan

 

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

 

From: DarkSkyNewMexico@groups.io <DarkSkyNewMexico@groups.io> On Behalf Of Gregg Ruppel
Sent: Saturday, January 8, 2022 5:48 PM
To: DarkSkyNewMexico@groups.io
Subject: Re: [DarkSkyNewMexico] Sharpless 112

 

Nice work, Dan.  I think you could push the saturation a bit on the Ha version.  Thanks for sharing.

Gregg

 

Visit my astronomy & astrophotography site



On Jan 8, 2022, at 3:04 PM, Dan Crowson <dcrowson@...> wrote:



Sharpless 112 (DWB 174 and others) is a nebula ionized by BD+45 3216. This one is located approximately 5,675 light-years away in Cygnus.

 

Ha – 24x1800s – 720 minutes – binned 1x1

Luminance – 24x600s – 240 minutes – binned 1x1

RGB – 10:8:9x300s – 50:40:45 minutes each – binned 2x2

 

1095 minutes total exposure –  18 hours 15 minutes

 

Imaged over ten nights in October, 2020 and May, June and October, 2021 at 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/51807523792/sizes/l/

HaRGB - https://www.flickr.com/photos/dcrowson/51808596948/sizes/l/

 

 

Dan

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

 


Dean Glace
 

DAN,

Nice....I like the red enhancement from the Ha...

Dean





On Jan 8, 2022, at 6:04 PM, Dan Crowson <dcrowson@...> wrote:



Sharpless 112 (DWB 174 and others) is a nebula ionized by BD+45 3216. This one is located approximately 5,675 light-years away in Cygnus.

 

Ha – 24x1800s – 720 minutes – binned 1x1

Luminance – 24x600s – 240 minutes – binned 1x1

RGB – 10:8:9x300s – 50:40:45 minutes each – binned 2x2

 

1095 minutes total exposure –  18 hours 15 minutes

 

Imaged over ten nights in October, 2020 and May, June and October, 2021 at 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/51807523792/sizes/l/

HaRGB - https://www.flickr.com/photos/dcrowson/51808596948/sizes/l/

 

 

Dan

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