Sharpless 239 - The Narrow View


Dan Crowson
 

Sharpless 239 (LBN 821 and others) is defined as a HII region but appears to be reflection nebulae (and Herbig-Haro objects - https://en.wikipedia.org/wiki/Herbig%E2%80%93Haro_object) located within LDN 1551. These are located less than two degrees from Aldebaran in Taurus. A paper from 1976 (http://articles.adsabs.harvard.edu/pdf/1976ApJ...206..443K) determines this one to be approximately 456 light-years away.

 

Luminance – 36x600s – 360 minutes – binned 1x1

RGB – 16x300s – 80 minutes each – binned 2x2

 

600 minutes total exposure – 10 hours

 

Imaged over eight nights in 2018, 2019 and 2020 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/50967447531/sizes/l/

 

See my ‘wide view’ image here - https://www.flickr.com/photos/dcrowson/50967525727/

 

Dan

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

 


Brian Ottum
 

Holy cow, that is extremely different.  Almost looks anatomical.

 

From: DarkSkyNewMexico@groups.io <DarkSkyNewMexico@groups.io> On Behalf Of Dan Crowson
Sent: Sunday, February 21, 2021 5:30 PM
To: 'Dan Crowson' <dcrowson@...>
Subject: [DarkSkyNewMexico] Sharpless 239 - The Narrow View

 

Sharpless 239 (LBN 821 and others) is defined as a HII region but appears to be reflection nebulae (and Herbig-Haro objects - https://en.wikipedia.org/wiki/Herbig%E2%80%93Haro_object) located within LDN 1551. These are located less than two degrees from Aldebaran in Taurus. A paper from 1976 (http://articles.adsabs.harvard.edu/pdf/1976ApJ...206..443K) determines this one to be approximately 456 light-years away.

 

Luminance – 36x600s – 360 minutes – binned 1x1

RGB – 16x300s – 80 minutes each – binned 2x2

 

600 minutes total exposure – 10 hours

 

Imaged over eight nights in 2018, 2019 and 2020 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/50967447531/sizes/l/

 

See my ‘wide view’ image here - https://www.flickr.com/photos/dcrowson/50967525727/

 

Dan

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

 


Dan Crowson
 

Yes, definitely odd. Those colors are real as well. I tried throwing more data at it to help with the noise but it didn’t help.


Dan

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

 

From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Brian Ottum
Sent: Sunday, February 21, 2021 5:08 PM
To: DarkSkyNewMexico@groups.io
Subject: Re: [DarkSkyNewMexico] Sharpless 239 - The Narrow View

 

Holy cow, that is extremely different.  Almost looks anatomical.

 

From: DarkSkyNewMexico@groups.io <DarkSkyNewMexico@groups.io> On Behalf Of Dan Crowson
Sent: Sunday, February 21, 2021 5:30 PM
To: 'Dan Crowson' <dcrowson@...>
Subject: [DarkSkyNewMexico] Sharpless 239 - The Narrow View

 

Sharpless 239 (LBN 821 and others) is defined as a HII region but appears to be reflection nebulae (and Herbig-Haro objects - https://en.wikipedia.org/wiki/Herbig%E2%80%93Haro_object) located within LDN 1551. These are located less than two degrees from Aldebaran in Taurus. A paper from 1976 (http://articles.adsabs.harvard.edu/pdf/1976ApJ...206..443K) determines this one to be approximately 456 light-years away.

 

Luminance – 36x600s – 360 minutes – binned 1x1

RGB – 16x300s – 80 minutes each – binned 2x2

 

600 minutes total exposure – 10 hours

 

Imaged over eight nights in 2018, 2019 and 2020 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/50967447531/sizes/l/

 

See my ‘wide view’ image here - https://www.flickr.com/photos/dcrowson/50967525727/

 

Dan

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

 


MJ Post
 

Beautifully complex and surreal.  Thanks Dan!
 
MJ

On 02/21/2021 3:29 PM Dan Crowson <dcrowson@...> wrote:
 
 

Sharpless 239 (LBN 821 and others) is defined as a HII region but appears to be reflection nebulae (and Herbig-Haro objects - https://en.wikipedia.org/wiki/Herbig%E2%80%93Haro_object) located within LDN 1551. These are located less than two degrees from Aldebaran in Taurus. A paper from 1976 (http://articles.adsabs.harvard.edu/pdf/1976ApJ...206..443K) determines this one to be approximately 456 light-years away.

 

Luminance – 36x600s – 360 minutes – binned 1x1

RGB – 16x300s – 80 minutes each – binned 2x2

 

600 minutes total exposure – 10 hours

 

Imaged over eight nights in 2018, 2019 and 2020 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/50967447531/sizes/l/

 

See my ‘wide view’ image here - https://www.flickr.com/photos/dcrowson/50967525727/

 

Dan

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

 


Bernard Miller
 

Dan,

 

Very unusual object and very beautiful. Maybe a little noisy but well worth the look.

 

Bernard

 

 

From: DarkSkyNewMexico@groups.io On Behalf Of Dan Crowson
Sent: Sunday, February 21, 2021 3:30 PM
To: 'Dan Crowson' <dcrowson@...>
Subject: [DarkSkyNewMexico] Sharpless 239 - The Narrow View

 

Sharpless 239 (LBN 821 and others) is defined as a HII region but appears to be reflection nebulae (and Herbig-Haro objects - https://en.wikipedia.org/wiki/Herbig%E2%80%93Haro_object) located within LDN 1551. These are located less than two degrees from Aldebaran in Taurus. A paper from 1976 (http://articles.adsabs.harvard.edu/pdf/1976ApJ...206..443K) determines this one to be approximately 456 light-years away.

 

Luminance – 36x600s – 360 minutes – binned 1x1

RGB – 16x300s – 80 minutes each – binned 2x2

 

600 minutes total exposure – 10 hours

 

Imaged over eight nights in 2018, 2019 and 2020 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/50967447531/sizes/l/

 

See my ‘wide view’ image here - https://www.flickr.com/photos/dcrowson/50967525727/

 

Dan

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

 




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