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  #1  
Old 08-11-2018, 08:37 AM
furgle (Adam)
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The Cartwheel Galaxy

I've always wanted to try to capture this galaxy. I was surprised to get any detail out of it.

Higher resolution here



Lying about 500 million light-years away in the constellation of Sculptor, the cartwheel shape of this galaxy is the result of a violent galactic collision. A smaller galaxy has passed right through a large disk galaxy and produced shock waves that swept up gas and dust — much like the ripples produced when a stone is dropped into a lake — and sparked regions of intense star formation (appearing blue). The outermost ring of the galaxy, which is 1.5 times the size of our Milky Way, marks the shock wave’s leading edge. This object is one of the most dramatic examples of the small class of ring galaxies. (Source: NASA)


The galaxy that collided with the Cartwheel Galaxy is the small white galaxy seen far below and slightly left. It is currently 250,000 light years from the Cartwheel Galaxy (Source: APOD)

Image: Total integration 18 hours.

Hardware:
  • Celestron 11" EdgeHD
  • Skywatcher EQ8 Pro mount
  • QSI 683-ws8 Camera @ -15°C
  • Astronomik UHC, deep sky RGB filters
  • Starlight Xpress Lodestar X2 Autoguider
  • Starlight Xpress Active Optics
  • Innovations Foresight On Axis Guider
  • Starlight Instruments Focus Boss II
Location:
  • Imaged on 4 nights between September 18 and October 3, 2018.
  • Orange zone in Brisbane, Australia. (Bortle 7)
Attached Thumbnails
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Click for full-size image (carthwheel_IIS.jpg)
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  #2  
Old 08-11-2018, 08:48 AM
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multiweb (Marc)
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That's a superb shot. Very well resolved. Top shelf.
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  #3  
Old 08-11-2018, 10:00 AM
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cometcatcher (Kevin)
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Wow, that is amazing for a galaxy. I would have taken it for a PN. Top shot!
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  #4  
Old 08-11-2018, 04:15 PM
Stevec35 (Steve)
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That's a stunning result! Probably the best amateur image I've seen of this object I think.

Cheers

Steve
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  #5  
Old 08-11-2018, 04:51 PM
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John Hothersall
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That's a great result for a faint galaxy Adam. Weird morphology.

John.
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  #6  
Old 08-11-2018, 05:02 PM
Placidus (Mike and Trish)
Narrowing the band

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You've totally aced that one Adam.

Three cheers!
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  #7  
Old 08-11-2018, 09:39 PM
markas (Mark)
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Fabulous shot! Detail is remarkable.


Mark
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  #8  
Old 08-11-2018, 10:05 PM
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alpal
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Thanks Adam,
I never even knew about that one.
You did well to pick that up.

more here:
https://en.wikipedia.org/wiki/Cartwheel_Galaxy


cheers
Allan
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  #9  
Old 09-11-2018, 12:57 AM
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Joshua Bunn (Joshua)
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lovely rendition Adam!
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  #10  
Old 09-11-2018, 10:58 AM
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beren
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Congrats on this fine image of a unique distant galaxy, well done
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  #11  
Old 10-11-2018, 09:21 AM
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Jeff
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Fascinating target Adam.
At ~1 arcmin and mag 15.2, it's come up really well.
Appreciate the links also … very interesting read.
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  #12  
Old 10-11-2018, 02:42 PM
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Paul Haese
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Well done Adam, that has great detail and nice colour.
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  #13  
Old 10-11-2018, 03:05 PM
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codemonkey (Lee)
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Awesome work, Adam!
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  #14  
Old 11-11-2018, 06:39 AM
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SimmoW (SIMON)
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Unusual, weird, fantastic!
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  #15  
Old 12-11-2018, 12:00 PM
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Geoff45 (Geoff)
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That’s a great image Adam. I’ve never had the courage to try it. Resolution and colour are top notch.
Geoff
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