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

Reply
 
Thread Tools Rate Thread
  #1  
Old 13-12-2008, 12:32 PM
strongmanmike's Avatar
strongmanmike (Michael)
Highest Observatory in Oz

strongmanmike is offline
 
Join Date: May 2006
Location: Canberra
Posts: 17,625
Ngc 6744

Yes it's a repro but this is only the first one... Passes the time while I wait to image again

I wanted to showcase just the galaxy this time. The conditions on the night were far from ideal with stong winds and poor seeing so extracting detail was challenging and I went light on the noise reduction, as usual, to avoid the plastic look, hopefully I have struck a balance between low noise and a more natural apperance..? I tried to keep the extremely faint galactic cirrus dust visible around the galaxy too and some can be detected on the lower left side of the image. This galaxy is known to be rather blue.

NGC 6744 is a beautiful galaxy in a rich star field and fingers crossed next time I image this beauty the conditions will be more favourable .

(1.8meg file)
http://www.pbase.com/strongmanmike20...34751/original

Thnaks for looking (again)

Mike

Last edited by strongmanmike; 13-12-2008 at 04:09 PM.
Reply With Quote
  #2  
Old 13-12-2008, 03:06 PM
Dennis
Dazzled by the Cosmos.

Dennis is offline
 
Join Date: May 2005
Location: Brisbane
Posts: 11,762
A beautiful image Mike, although those few words are rather inadequate in conveying the magnificence of this galaxy and its breathtaking cosmic setting, whilst also acknowledging the effort that went into acquiring and processing it.

Cheers

Dennis
Reply With Quote
  #3  
Old 13-12-2008, 06:38 PM
strongmanmike's Avatar
strongmanmike (Michael)
Highest Observatory in Oz

strongmanmike is offline
 
Join Date: May 2006
Location: Canberra
Posts: 17,625
Thanks Dennis

The huge field of the Starfire and ProLine is one thing but on a galaxy it needs to be narrow field. The 1140mm FL provides just enough image scale(1.6"/pix) to reveal most of the detail in the galaxy, of course a steady sky with no wind would have produced a better result

I brightened the core region and inner arms slightly (without blowing them out) and this engulfed a couple of stars that were visible right near the core but I think the strong central glow helps to give the galaxy a bit more punch and is perhaps even slightly more realistic..?

Cheers

Mike
Reply With Quote
  #4  
Old 13-12-2008, 06:46 PM
Smirnoff
Licensed to get drunk

Smirnoff is offline
 
Join Date: Nov 2008
Location: Vostok Station
Posts: 111
bloody great Mike!
Reply With Quote
  #5  
Old 13-12-2008, 07:49 PM
dcalleja's Avatar
dcalleja
Registered User

dcalleja is offline
 
Join Date: Oct 2005
Location: Sydney
Posts: 515
Mike
I think you got it right - a nice natural look. Not pastel and the backgrounds not too dark. Its really well set off against the star field. Very nice indeed
Reply With Quote
  #6  
Old 13-12-2008, 10:36 PM
Hagar (Doug)
Registered User

Hagar is offline
 
Join Date: Oct 2006
Location: Australia
Posts: 4,646
Very nice Mike. The noise is evident but certainly doesn't detract from the image. Seems a little on the bright side on my monitor but as you say quite a blue galaxy.

Another quality image and it's not Centaurus A.
Reply With Quote
  #7  
Old 14-12-2008, 12:04 AM
AlexN's Avatar
AlexN
Widefield wuss

AlexN is offline
 
Join Date: Mar 2008
Location: Caboolture, Australia
Posts: 6,994
Agreed, Top quality result. (and not Centaurus A )
Reply With Quote
  #8  
Old 14-12-2008, 10:35 AM
RB's Avatar
RB (Andrew)
Moderator

RB is offline
 
Join Date: Aug 2005
Posts: 26,530
Top Stuff Mike, that deserves another Guinness !
Reply With Quote
  #9  
Old 14-12-2008, 02:50 PM
jase (Jason)
Registered User

jase is offline
 
Join Date: Sep 2006
Location: Melbourne, Victoria
Posts: 3,916
I like it Mike. Rich colours and details. Difficult target to get right given its low surface brightness and diffused spiral arms. Well done on the repro.
Reply With Quote
  #10  
Old 18-12-2008, 09:21 AM
Garyh's Avatar
Garyh
Amongst the stars

Garyh is offline
 
Join Date: Jun 2006
Location: Glen Innes, N.S.W.
Posts: 2,888
Very nicely done Mike, yes you have brought out the faint outer extensions and show the spiral structure very nicely..
Yes a great image of a difficult and low surface brightness target.
cheers Gary
Reply With Quote
  #11  
Old 18-12-2008, 09:24 AM
iceman's Avatar
iceman (Mike)
Sir Post a Lot!

iceman is offline
 
Join Date: Sep 2004
Location: Gosford, NSW, Australia
Posts: 36,799
That's a lovely image, Mike. The colour balance looks spot on.
Reply With Quote
  #12  
Old 18-12-2008, 01:53 PM
richardo's Avatar
richardo (Rich)
Love reflection Nebs !

richardo is offline
 
Join Date: Aug 2006
Location: Streaky Bay
Posts: 1,070
Nah, not more repro's Mike..... pleeeease, I can't take it any more

Yeah big fella, this weather's enough to make a man go take up knitting or something

Looks pretty darn good to me Migel. Not an easy object with it's relatively low surface brightness to tweak out distinctive detail.
I love the fov your getting with your scope/ ccd combo. A good balance between in your face and too small.

My nemesis always seems to be M104, the weather never seems to play ball at all.

So lets hope we all have some better weather in the new year, this has got to be the worst run I've ever had...

All the best and I guess we can stand a few more repro's... but take it easy..... ok
Reply With Quote
  #13  
Old 19-12-2008, 09:15 PM
alan meehan's Avatar
alan meehan (Alan)
Registered User

alan meehan is offline
 
Join Date: Jul 2005
Location: maryland newcastle AUSTRALIA
Posts: 1,847
thanks mike
this is a real jewel
Reply With Quote
  #14  
Old 19-12-2008, 09:36 PM
Peter Ward's Avatar
Peter Ward
Galaxy hitchhiking guide

Peter Ward is offline
 
Join Date: Dec 2007
Location: The Shire
Posts: 8,447
Quote:
Originally Posted by richardo View Post

My nemesis always seems to be M104, the weather never seems to play ball at all.
Agreed. But well worth the effort. When I got the final L data for this image

http://www.atscope.com.au/BRO/gallery20.html

the weather was basically fog every morning for that week around the new moon....brilliant seeing stability...capped off with good gear and an AO with bright guide star....sometimes it all comes together!
Reply With Quote
  #15  
Old 19-12-2008, 11:19 PM
h0ughy's Avatar
h0ughy (David)
Moderator

h0ughy is offline
 
Join Date: Apr 2005
Location: NEWCASTLE NSW Australia
Posts: 33,368
its a 3.7 Guinness piccy Mike
Reply With Quote
  #16  
Old 21-12-2008, 08:28 PM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 18,169
Beautiful image. I can't believe you got all this from a 6 inch APO.
Very impressive.

Greg.
Reply With Quote
  #17  
Old 22-12-2008, 03:51 PM
renormalised's Avatar
renormalised (Carl)
No More Infinities

renormalised is offline
 
Join Date: Apr 2008
Location: Townsville
Posts: 9,698
As usual Mike, brilliantly done, even given the conditions. Well done.
Reply With Quote
  #18  
Old 22-12-2008, 07:01 PM
Jen's Avatar
Jen
Moving to Pandora

Jen is offline
 
Join Date: Jan 2008
Location: Swan Hill
Posts: 7,102
nice work, as usual Mike keep em coming
Reply With Quote
  #19  
Old 22-12-2008, 07:43 PM
strongmanmike's Avatar
strongmanmike (Michael)
Highest Observatory in Oz

strongmanmike is offline
 
Join Date: May 2006
Location: Canberra
Posts: 17,625
Quote:
Originally Posted by gregbradley View Post
Beautiful image. I can't believe you got all this from a 6 inch APO.
Very impressive.

Greg.
Cheers Greg

The modest 1140mm FL and superb unobstructed optics are adequate to reveal plenty of detail across the board plus you have the large 1.8deg X 1.2deg FOV at good resolution with the KAI11002 (even bigger field with your 16803 chip!) to fit heaps in too. It's a reasonable substitute for a much larger RC with narrow FOV and a bulbous near 50% obstruction really (and quite a bit cheaper even) ...and she's portable to boot . I am continually amazed at the results it can deliver with just 152mm, even in poor conditions, it really is a purler of a scope and I feel very lucky to have one.

Mind you, I'd like a bigger high quality RC or CDK or ideally a Keller Corrected Cassegarain RC killer too of course, if had the dosh...and a clear open sky...and a dark location...and an observatory..and....

Mike
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 01:33 AM.

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