Go Back   IceInSpace > Images > Deep Space
Register FAQ Calendar Today's Posts Search

Reply
 
Thread Tools Rating: Thread Rating: 2 votes, 5.00 average.
  #1  
Old 11-03-2014, 02:22 PM
Paul Haese's Avatar
Paul Haese
Registered User

Paul Haese is offline
 
Join Date: Jan 2009
Location: Adelaide
Posts: 9,991
NGC2442 "the Meat Hook"

This is the latest image out of Clayton Observatories. Totalling 27.5 hours of data with 15.5 hours in luminance. NGC2442 also known as the Meat Hook Galaxy or the Cobra Galaxy. It is a faint object at Mag 11.2 and lies at a distance of 50 million light years. I found that even subs of 30 minutes presented problems with noise once lots of stretching occurred.

Of interest in the field of view are quite a variety of galaxy types. There also appears to be some cirrus across the field, though I am happy to be corrected if this is not the case.

The dome GSO RC12 system is now fully operational with imaging runs being conducted on every clear night. Though some flexure still exists which is affecting the star shapes in the corners at present (I have had to crop this image by 10%), though the manufactures, retailers and I have been working on a viable solution to the existing minor problem.

As you can see the optics which are typical for GSO RC's provide a sharp view of this object. It has taken over 2 years for me to present another image taken with set of optics and I am reasonably pleased with the results. I look forward to many hours of imaging with this system and have started a collection of Galaxies and narrow field objects I would like to image in the coming years.

I still feel the need to collect a lot more data on this object to eliminate the noise and will present a revised once I have completed the task. Though for now I present this view.

Click here for higher resolution image.
Attached Thumbnails
Click for full-size image (NGC2442 LRGB 930 240 240 240 scaled cs final cr.jpg)
127.0 KB315 views
Reply With Quote
  #2  
Old 11-03-2014, 02:26 PM
graham.hobart's Avatar
graham.hobart (Graham stevens)
DeepSkySlacker

graham.hobart is offline
 
Join Date: Nov 2008
Location: hobart, tasmania
Posts: 2,241
meat hook galaxy

That's really rather lovely Paul. Lots to see in the background as well.
Good one!
Cheers
Graham.
Reply With Quote
  #3  
Old 11-03-2014, 02:34 PM
Mighty_oz (Marcus)
Registered User

Mighty_oz is offline
 
Join Date: May 2006
Location: Atm somewhere in Perth
Posts: 575
Nice looking galaxy there, are u going to be running both scopes at the same time now ? We'll all have trouble keeping up with u then lol.
Reply With Quote
  #4  
Old 11-03-2014, 02:36 PM
rmuhlack's Avatar
rmuhlack (Richard)
Professional Nerd

rmuhlack is offline
 
Join Date: Nov 2011
Location: Strathalbyn, SA
Posts: 984
Outstanding. You must be happy with that!
Reply With Quote
  #5  
Old 11-03-2014, 02:48 PM
Astro_Bot's Avatar
Astro_Bot
Registered User

Astro_Bot is offline
 
Join Date: Jun 2012
Location: Brisbane
Posts: 1,605
Noise? What noise?

That's a terrific shot, and an attractive galaxy.
Reply With Quote
  #6  
Old 11-03-2014, 02:49 PM
multiweb's Avatar
multiweb (Marc)
ze frogginator

multiweb is offline
 
Join Date: Oct 2007
Location: Sydney
Posts: 22,080
Wow! Exceptional in every respect. You're the new galaxy guy.
Reply With Quote
  #7  
Old 11-03-2014, 03:10 PM
allan gould's Avatar
allan gould
Registered User

allan gould is offline
 
Join Date: May 2005
Location: Brisbane
Posts: 4,485
Wow, that's a ripper Paul that should put paid to all the nay Sayers out there about the quality of the GSO RC's. Love the colour and detail as its the best I've seen of that galaxy.
Allan
Reply With Quote
  #8  
Old 11-03-2014, 03:16 PM
rustigsmed's Avatar
rustigsmed (Russell)
Registered User

rustigsmed is offline
 
Join Date: Mar 2012
Location: Mornington Peninsula, Australia
Posts: 3,998
that is fantastic. great detail in the galaxy, the full res is must see!
great to see you up and imaging again Paul.

Cheers,

Rusty
Reply With Quote
  #9  
Old 11-03-2014, 03:34 PM
alpal's Avatar
alpal
Registered User

alpal is offline
 
Join Date: Jan 2012
Location: Melbourne
Posts: 3,786
Hi Paul,
that already looks great.
I've compared it to an APOD

http://apod.nasa.gov/apod/ap070315.html

& another pic

http://www.starshadows.com/_img/imag...er_ST10XME.jpg

& yours looks just as good - if not better.
The aqua colour of the galaxy arms may be up for debate though?
I'm not sure.

cheers
Allan
Reply With Quote
  #10  
Old 11-03-2014, 03:41 PM
rogerg's Avatar
rogerg (Roger)
Registered User

rogerg is offline
 
Join Date: Feb 2006
Location: Perth, Western Australia
Posts: 4,563
Spectacular image Great colour variation.

I am not sure I'd call it a faint object thought ...
Reply With Quote
  #11  
Old 11-03-2014, 03:52 PM
Paul Haese's Avatar
Paul Haese
Registered User

Paul Haese is offline
 
Join Date: Jan 2009
Location: Adelaide
Posts: 9,991
Thanks guys, I really appreciate the comments.

Quote:
Originally Posted by Mighty_oz View Post
Nice looking galaxy there, are u going to be running both scopes at the same time now ? We'll all have trouble keeping up with u then lol.

Yes both systems are operational, so both will be collecting data on any clear night generally. With my propensity to gather lots of data I doubt I will be keeping up with you lot.

Quote:
Originally Posted by Astro_Bot View Post
Noise? What noise?

That's a terrific shot, and an attractive galaxy.
Trust me it is there. I can see it, but it is nice that lots of monitors don't show it well.

Quote:
Originally Posted by multiweb View Post
Wow! Exceptional in every respect. You're the new galaxy guy.
Not sure about that Marc. Nice of you to say that but I reckon I still have plenty to learn. Having a scope that can do narrow field imaging is a big step forward though.

Quote:
Originally Posted by allan gould View Post
Wow, that's a ripper Paul that should put paid to all the nay Sayers out there about the quality of the GSO RC's. Love the colour and detail as its the best I've seen of that galaxy.
Allan
Yeah that was my thinking too Allan. Next will come the I have a hand picked scope, blah, blah, blah. Thanks for the compliment on the image.

Quote:
Originally Posted by alpal View Post
Hi Paul,
that already looks great.
I've compared it to an APOD

http://apod.nasa.gov/apod/ap070315.html

& another pic

http://www.starshadows.com/_img/imag...er_ST10XME.jpg

& yours looks just as good - if not better.
The aqua colour of the galaxy arms may be up for debate though?
I'm not sure.

cheers
Allan
Thanks Allan, I saw those and was interested in them for comparison. I agree on the colour too, its up for debate. Certainly I will be revisiting this once I get the final data.
Reply With Quote
  #12  
Old 11-03-2014, 03:58 PM
Paul Haese's Avatar
Paul Haese
Registered User

Paul Haese is offline
 
Join Date: Jan 2009
Location: Adelaide
Posts: 9,991
Quote:
Originally Posted by rogerg View Post
Spectacular image Great colour variation.

I am not sure I'd call it a faint object thought ...
Faint enough for f8 though Roger. I found 20 minute subs were too faint, so I figure it was faint at mag 11.2. I stand corrected.
Reply With Quote
  #13  
Old 11-03-2014, 04:15 PM
Joshua Bunn's Avatar
Joshua Bunn (Joshua)
Registered User

Joshua Bunn is offline
 
Join Date: Oct 2011
Location: Albany, Western Australia
Posts: 1,486
WOW! that really is top notch Paul. I would be interested to hear where you think the source of your flexure is coming from?

Josh
Reply With Quote
  #14  
Old 11-03-2014, 04:20 PM
atalas's Avatar
atalas
Registered User

atalas is offline
 
Join Date: Mar 2005
Location: Sydney
Posts: 5,151
Very fine work Paul.
Reply With Quote
  #15  
Old 11-03-2014, 04:33 PM
Paul Haese's Avatar
Paul Haese
Registered User

Paul Haese is offline
 
Join Date: Jan 2009
Location: Adelaide
Posts: 9,991
Quote:
Originally Posted by Joshua Bunn View Post
WOW! that really is top notch Paul. I would be interested to hear where you think the source of your flexure is coming from?

Josh
The mirror cell currently connects directly to the imaging train. On really heavy imaging trains some flex occurs. The mirror cell and rear adapters are being redesigned to take heavy loads. When I say heavy loads I mean like I have on the back of my scope. Loads half that weight will be fine with the current setup.
Reply With Quote
  #16  
Old 11-03-2014, 04:57 PM
strongmanmike's Avatar
strongmanmike (Michael)
Highest Observatory in Oz

strongmanmike is offline
 
Join Date: May 2006
Location: Canberra
Posts: 17,691
There are several things I (and others) could say about the look of this image (not to mention the exposure time - kidding)... but then I would be bowing to the trend of only picking apart the minor aspects of processing and completely forgetting about the object imaged Suffice to say it is a great image of what I have always thought was a somewhat ugly galaxy (no offence to its parents) so well done there, the dust lane is quite clear and I love the companion galaxies in the FOV.

Nice job Paul and your new addition to the growing Clayton Observatory complex shows plenty of promise, I bet you are quite happy about that

Mike
Reply With Quote
  #17  
Old 11-03-2014, 05:09 PM
Joshua Bunn's Avatar
Joshua Bunn (Joshua)
Registered User

Joshua Bunn is offline
 
Join Date: Oct 2011
Location: Albany, Western Australia
Posts: 1,486
Quote:
Originally Posted by Paul Haese View Post
The mirror cell currently connects directly to the imaging train. On really heavy imaging trains some flex occurs. The mirror cell and rear adapters are being redesigned to take heavy loads. When I say heavy loads I mean like I have on the back of my scope. Loads half that weight will be fine with the current setup.
Thanks Paul.
Reply With Quote
  #18  
Old 11-03-2014, 05:58 PM
RickS's Avatar
RickS (Rick)
PI cult recruiter

RickS is offline
 
Join Date: Apr 2010
Location: Brisbane
Posts: 10,584
Nice to see a great result after all that effort and time, Paul!

It is actually a fairly dim galaxy. Surface brightness is 23 mag/arcsec2.

Cheers,
Rick.
Reply With Quote
  #19  
Old 11-03-2014, 06:26 PM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 18,185
Wow Paul I am really impressed. A superb image. Love the colour. I think your colour is better than the other 2 linked.

Am I seeing things or is there a giant plume of stars coming off the top spiral that extends all the way down to the right? Gee that is worth more exposure time to accentuate that. That would be new territory. The other linked images don't show that tidal stream and yours does.

Now you got me thinking about a GSO 12 RC for my dark site!

Your hard work and patience is paying off.

Greg.
Reply With Quote
  #20  
Old 11-03-2014, 06:29 PM
Shiraz's Avatar
Shiraz (Ray)
Registered User

Shiraz is offline
 
Join Date: Apr 2010
Location: ardrossan south australia
Posts: 4,918
excellent result Paul. top resolution and attractive colour as well. Regards Ray
Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 02:51 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Advertisement
Bintel
Advertisement
Astrophotography Prize
Advertisement