Perseus galaxy cluster (Abell 426) from Paris


Dan_Paris
 

Thanks Christopher! I have realized that with enough integration time, almost everything is within reach despite light pollution,

clear skies,

Dan


Dan_Paris
 

Thanks Karen! There're even more outside of the FOV....

Dan


Dan_Paris
 

Thanks a lot Stuart!


Christopher M
 

It is inspiring to see what you can squeeze out of Bortle 7/8 soft skies without narrow band filters.
Well done.
C


Rock Trepanier
 

Stuart 

Your photographic skills in both astro and landscape are superb ūüĎƬ†

Rock

On Sat., Nov. 19, 2022, 10:16 a.m. Stuart, <stuart.j.heggie@...> wrote:
Dan, what a superb shot! Incredible detail!


On Sat, 19 Nov 2022 at 09:42, Dan_Paris <danysra@...> wrote:
Hi,

 
The Perseus galaxy cluster is one of the most massive objects in the universe, made of thousands of galaxies immersed in a cloud of very hot gas, approximately 240 million l.y. from us. It is dominated by the huge Seyfert galaxy NGC1275 with a very strong X-ray and radio emission.

I imaged it with my 8" f/4 newtonian astrograph and an ASI183mm on an AP900 CP4 mount from my light-polluted backyard in Paris' suburbs (Bortle 7-8). The luminance (10 hours overall) was taken over two nights during the rare cloud breaks we had the last month. The RGB data is from last year (with an ASI1600mm).
 

I invite you to have a look at the full-res and uncropped image:

http://www.astrosurf...0a356a2cddf.jpg

 Here is also a link to the annotated luminance with many galaxies from the PGC catalog as well as quasars labelled by their redshift (the most distant has redshift z=2.9)  

http://www.astrosurf...9590e30a0d2.jpg

 

Thanks for looking and clear skies,

 

Dan

 



Technical details

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
ZWO LRGB filters
Guiding : ZWO OAG + ASI120mm mini + AsiairV1
Luminance : 600 *60sec with the ASI183mm
Chrominance : 40*60sec for each R, V and B filter
Conditions : Bortle 7/8 skies in Paris' suburbs (20km from the Eiffel tower), average seeing, lot of humidity
Processing with Pixinsight

 


Karen Christen
 

Holy cow that’s gorgeous, Dan.  You could spend days finding all the galaxies in there!

Karen

AP

 

From: main@ap-gto.groups.io <main@ap-gto.groups.io> On Behalf Of Dan_Paris
Sent: Saturday, November 19, 2022 8:42 AM
To: main@ap-gto.groups.io
Subject: [ap-gto] Perseus galaxy cluster (Abell 426) from Paris

 

Hi,

 
The Perseus galaxy cluster is one of the most massive objects in the universe, made of thousands of galaxies immersed in a cloud of very hot gas, approximately 240 million l.y. from us. It is dominated by the huge Seyfert galaxy NGC1275 with a very strong X-ray and radio emission.

I imaged it with my 8" f/4 newtonian astrograph and an ASI183mm on an AP900 CP4 mount from my light-polluted backyard in Paris' suburbs (Bortle 7-8). The luminance (10 hours overall) was taken over two nights during the rare cloud breaks we had the last month. The RGB data is from last year (with an ASI1600mm).
 

I invite you to have a look at the full-res and uncropped image:

http://www.astrosurf...0a356a2cddf.jpg

 Here is also a link to the annotated luminance with many galaxies from the PGC catalog as well as quasars labelled by their redshift (the most distant has redshift z=2.9)  

http://www.astrosurf...9590e30a0d2.jpg

 

Thanks for looking and clear skies,

 

Dan

 



Technical details

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
ZWO LRGB filters
Guiding : ZWO OAG + ASI120mm mini + AsiairV1
Luminance : 600 *60sec with the ASI183mm
Chrominance : 40*60sec for each R, V and B filter
Conditions : Bortle 7/8 skies in Paris' suburbs (20km from the Eiffel tower), average seeing, lot of humidity
Processing with Pixinsight

 


--
Karen Christen
Astro-Physics


Stuart
 

Dan, what a superb shot! Incredible detail!


On Sat, 19 Nov 2022 at 09:42, Dan_Paris <danysra@...> wrote:
Hi,

 
The Perseus galaxy cluster is one of the most massive objects in the universe, made of thousands of galaxies immersed in a cloud of very hot gas, approximately 240 million l.y. from us. It is dominated by the huge Seyfert galaxy NGC1275 with a very strong X-ray and radio emission.

I imaged it with my 8" f/4 newtonian astrograph and an ASI183mm on an AP900 CP4 mount from my light-polluted backyard in Paris' suburbs (Bortle 7-8). The luminance (10 hours overall) was taken over two nights during the rare cloud breaks we had the last month. The RGB data is from last year (with an ASI1600mm).
 

I invite you to have a look at the full-res and uncropped image:

http://www.astrosurf...0a356a2cddf.jpg

 Here is also a link to the annotated luminance with many galaxies from the PGC catalog as well as quasars labelled by their redshift (the most distant has redshift z=2.9)  

http://www.astrosurf...9590e30a0d2.jpg

 

Thanks for looking and clear skies,

 

Dan

 



Technical details

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
ZWO LRGB filters
Guiding : ZWO OAG + ASI120mm mini + AsiairV1
Luminance : 600 *60sec with the ASI183mm
Chrominance : 40*60sec for each R, V and B filter
Conditions : Bortle 7/8 skies in Paris' suburbs (20km from the Eiffel tower), average seeing, lot of humidity
Processing with Pixinsight

 


Dan_Paris
 

Hi,

 
The Perseus galaxy cluster is one of the most massive objects in the universe, made of thousands of galaxies immersed in a cloud of very hot gas, approximately 240 million l.y. from us. It is dominated by the huge Seyfert galaxy NGC1275 with a very strong X-ray and radio emission.

I imaged it with my 8" f/4 newtonian astrograph and an ASI183mm on an AP900 CP4 mount from my light-polluted backyard in Paris' suburbs (Bortle 7-8). The luminance (10 hours overall) was taken over two nights during the rare cloud breaks we had the last month. The RGB data is from last year (with an ASI1600mm).
 

I invite you to have a look at the full-res and uncropped image:

http://www.astrosurf...0a356a2cddf.jpg

 Here is also a link to the annotated luminance with many galaxies from the PGC catalog as well as quasars labelled by their redshift (the most distant has redshift z=2.9)  

http://www.astrosurf...9590e30a0d2.jpg

 

Thanks for looking and clear skies,

 

Dan

 



Technical details

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
ZWO LRGB filters
Guiding : ZWO OAG + ASI120mm mini + AsiairV1
Luminance : 600 *60sec with the ASI183mm
Chrominance : 40*60sec for each R, V and B filter
Conditions : Bortle 7/8 skies in Paris' suburbs (20km from the Eiffel tower), average seeing, lot of humidity
Processing with Pixinsight