Arp 145


Dan Crowson
 

Arp 145 (UGC 1840, PGC 9062 and others) is the result of a head on collision of elliptical and spiral galaxies. This one is in Arp’s “E and E-like galaxies – Material emanating from E galaxies” class. It is located about a degree from NGC 891 and approximately 258 million light-years away in Andromeda.

 

Luminance – 24x600s – 240 minutes – binned 1x1

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

 

360 minutes total exposure – 6 hours

 

Imaged December 8th, 11th and 14th, 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/51133575500/sizes/l/

 

Dan

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

 


Brian Ottum
 

Huge contrast between them and those bright stars, emphasizes their different nature.

 

 

From: DarkSkyNewMexico@groups.io <DarkSkyNewMexico@groups.io> On Behalf Of Dan Crowson
Sent: Thursday, April 22, 2021 9:57 PM
To: 'Dan Crowson' <dcrowson@...>
Subject: [DarkSkyNewMexico] Arp 145

 

Arp 145 (UGC 1840, PGC 9062 and others) is the result of a head on collision of elliptical and spiral galaxies. This one is in Arp’s “E and E-like galaxies – Material emanating from E galaxies” class. It is located about a degree from NGC 891 and approximately 258 million light-years away in Andromeda.

 

Luminance – 24x600s – 240 minutes – binned 1x1

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

 

360 minutes total exposure – 6 hours

 

Imaged December 8th, 11th and 14th, 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/51133575500/sizes/l/

 

Dan

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

 


Gregg Ruppel
 

Nice...Arp should have a grouping “looks like a donut”!   Thanks for sharing.

Gregg

Visit my astronomy & astrophotography site
www.greggsastronomy.com

On Apr 22, 2021, at 6:56 PM, Dan Crowson <dcrowson@...> wrote:



Arp 145 (UGC 1840, PGC 9062 and others) is the result of a head on collision of elliptical and spiral galaxies. This one is in Arp’s “E and E-like galaxies – Material emanating from E galaxies” class. It is located about a degree from NGC 891 and approximately 258 million light-years away in Andromeda.

 

Luminance – 24x600s – 240 minutes – binned 1x1

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

 

360 minutes total exposure – 6 hours

 

Imaged December 8th, 11th and 14th, 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/51133575500/sizes/l/

 

Dan

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