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M92 globular cluster and a deep galactic field


Dan_Paris

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   Hi,

M92 is a well-known globular cluster in Hercules, overshadowed by its more famous neighbor M13 but nonetheless impressive on its own right. It is less known that is lies  close to a rich deep field containing many distant galaxies.

 

Many of them appears on this picture taken last month with my 8" newtonian astrograph, even from my light-polluted backyard  (right clic for the full-resolution picture) :

 

glob.jpg.fe2f4f4c3937ea61be5bf9aa3a8f5c35.thumb.jpg.98571a5346ddce60ea4f9663bc14aa79.jpg

Here is the luminance annotated with ASTAP

annot.jpg.1d0f548851c20febd97750b4517cedd4.thumb.jpg.764eab4dc3a0df64743034d8c9676526.jpg

 

Thanks for looking,

 

Dan

 

Technical data
200/800 custom Newtonian astrograph with Romano Zen optics and carbon fiber tube
AP900 CP4 mount on Losmandy HD tripod
TS 2.5" Riccardi-Wynne corrector
ASI183mm
ZWO LRGB filters
Guiding : ZWO OAG + ASI120mm mini + AsiairV1
Luminance : 200 *60sec at -10°C
Chrominance : 20*60sec at -10°C each channel
Darks, flats and synthetic biases
Conditions : Bortle 7/8 skies in Paris' suburbs (20km from the Eiffel tower), variable seeing (from 1.8" to 3"), rather poor transparency
Preprocessing and stacking with Siril, processing with Pixinsight and Rawtherapee

Edited by Dan_Paris
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I love these deep field images, especially when you can pop in a well known character with it. 

How far is the most distant of these if you know that is Dan?

2 hours ago, Dan_Paris said:

   Hi,

M92 is a well-known globular cluster in Hercules, overshadowed by its more famous neighbor M13 but nonetheless impressive on its own right. It is less known that is lies  close to a rich deep field containing many distant galaxies.

 

Many of them appears on this picture taken last month with my 8" newtonian astrograph, even from my light-polluted backyard  (right clic for the full-resolution picture) :

 

 

Here is the luminance annotated with ASTAP

annot.jpg.1d0f548851c20febd97750b4517cedd4.thumb.jpg.764eab4dc3a0df64743034d8c9676526.jpg

 

Thanks for looking,

 

Dan

 

Technical data
200/800 custom Newtonian astrograph with Romano Zen optics and carbon fiber tube
AP900 CP4 mount on Losmandy HD tripod
TS 2.5" Riccardi-Wynne corrector
ASI183mm
ZWO LRGB filters
Guiding : ZWO OAG + ASI120mm mini + AsiairV1
Luminance : 200 *60sec at -10°C
Chrominance : 20*60sec at -10°C each channel
Darks, flats and synthetic biases
Conditions : Bortle 7/8 skies in Paris' suburbs (20km from the Eiffel tower), variable seeing (from 1.8" to 3"), rather poor transparency
Preprocessing and stacking with Siril, processing with Pixinsight and Rawtherapee

 

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Thanks a lot @Paul M, @michael.h.f.wilkinson, @callisto, @bomberbaz @peter shah, @MartinB, @assouptro and @Saganite for your kind words.

 

On 23/08/2022 at 15:38, bomberbaz said:

How far is the most distant of these if you know that is Dan?

That's a good question, I should try to install Aladin and check for QSOs in the image.  In terms of magnitude, it is not very deep (mag 20.6), I reach usually around mag 21.5 with my setup and sky conditions.

 

14 hours ago, assouptro said:

 Are you having this printed? 

I would need first to find space on the walls of my house 😂

 

5 hours ago, Saganite said:

I showed M92 to my young Grandson just last night.......after M13...:redface:

 

Did he enjoy the views?

 

 

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