M107


Bernard Miller
 

Dan,

 

Nice resolution in the core. Not a lot of blue stragglers in this one.

 

Bernard

 

 

From: DarkSkyNewMexico@groups.io On Behalf Of Dan Crowson
Sent: Wednesday, May 19, 2021 3:30 PM
To: 'Dan Crowson' <dcrowson@...>
Subject: [DarkSkyNewMexico] M107

 

M107 (NGC 6171 and others) is a Shapley-Sawyer class X (http://en.wikipedia.org/wiki/Shapley%E2%80%93Sawyer_Concentration_Class) globular cluster located approximately 19,500 light-years away in Ophiuchus.

 

Luminance – 26x600s – 260 minutes – binned 1x1

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

 

380 minutes total exposure – 6 hours 20 minutes

 

Imaged May 24th and June 23rd and 24th, 2020 and May 12th, 13th and 15th, 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/51191055215/sizes/l/

 

Dan

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

 




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MJ Post
 

Very well done, Dan.  Is that a carbon star at the bottom?
 
MJ

On 05/19/2021 4:30 PM Dan Crowson <dcrowson@...> wrote:
 
 

M107 (NGC 6171 and others) is a Shapley-Sawyer class X (http://en.wikipedia.org/wiki/Shapley%E2%80%93Sawyer_Concentration_Class) globular cluster located approximately 19,500 light-years away in Ophiuchus.

 

Luminance – 26x600s – 260 minutes – binned 1x1

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

 

380 minutes total exposure – 6 hours 20 minutes

 

Imaged May 24th and June 23rd and 24th, 2020 and May 12th, 13th and 15th, 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/51191055215/sizes/l/

 

Dan

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

 


Gregg Ruppel
 

Very nice. My image shows identical colors - almost no blue stragglers, or at least dimmed by galactic dust.  Thanks for sharing.

Gregg

Visit my astronomy & astrophotography site
www.greggsastronomy.com

On May 19, 2021, at 3:30 PM, Dan Crowson <dcrowson@...> wrote:



M107 (NGC 6171 and others) is a Shapley-Sawyer class X (http://en.wikipedia.org/wiki/Shapley%E2%80%93Sawyer_Concentration_Class) globular cluster located approximately 19,500 light-years away in Ophiuchus.

 

Luminance – 26x600s – 260 minutes – binned 1x1

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

 

380 minutes total exposure – 6 hours 20 minutes

 

Imaged May 24th and June 23rd and 24th, 2020 and May 12th, 13th and 15th, 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/51191055215/sizes/l/

 

Dan

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

 


Dan Crowson
 

M107 (NGC 6171 and others) is a Shapley-Sawyer class X (http://en.wikipedia.org/wiki/Shapley%E2%80%93Sawyer_Concentration_Class) globular cluster located approximately 19,500 light-years away in Ophiuchus.

 

Luminance – 26x600s – 260 minutes – binned 1x1

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

 

380 minutes total exposure – 6 hours 20 minutes

 

Imaged May 24th and June 23rd and 24th, 2020 and May 12th, 13th and 15th, 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/51191055215/sizes/l/

 

Dan

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