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Waxing Crescent 11.3%
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11-06-2008, 06:21 PM
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Highest Observatory in Oz
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Join Date: May 2006
Location: Canberra
Posts: 17,689
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Quote:
Originally Posted by jase
It's my shout Mike, sure you don't want a brew or two.
Seriously though, I'll justify my statement to explain what I see. Of course I could be totally incorrect. I used Photoshop (equalize tool) to validate the potential blue shift to the lower right of the image. The attached image below is the result. Perhaps this is related to the same phenomenon which was experienced with your Corona Australis image. I don't think it shows in the latter as the background was kept quite dark. Again, in a print you'd probably wouldn't notice. Again, Fine Work.  
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Sorry Jase but I have to say I am rather flabergasted that you felt it necessary to go to such lengths to highlight a percieved flaw in another persons image. I could manipulate any one of your images to produce a gastly result too, I am not sure of your motivation, a bit sad really and rather unnecesary.
Don't worry, I'm not angry, just slightly dissapointed I guess  .
Mike
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11-06-2008, 06:34 PM
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Galaxy hitchhiking guide
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Join Date: Dec 2007
Location: The Shire
Posts: 8,475
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Quote:
Originally Posted by strongmanmike
Sorry Jase but I have to say I am rather flabergasted that you felt it necessary to go to such lengths to highlight a percieved flaw in another persons image.
Mike
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Hey Mike.
Join the tall poppy club. You did good.
With Luck I'll see you at Parks (even if I don't rate this year with any images, CWAS has roped me in for a talk/presentation)
Cheers
Peter
Last edited by Peter Ward; 11-06-2008 at 06:35 PM.
Reason: clarification
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11-06-2008, 07:45 PM
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accepts all donations
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Join Date: Feb 2006
Location: Braidwood (outskirts)
Posts: 2,281
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Great shot of a very rarely imaged target!
I've been wondering about this target for some time since seeing a pic in my software
looks great
well done!
16 hours! That's dedication!
I love it!
frank
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11-06-2008, 08:19 PM
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Registered User
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Join Date: Sep 2006
Location: Melbourne, Victoria
Posts: 3,916
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Quote:
Originally Posted by strongmanmike
Sorry Jase but I have to say I am rather flabergasted that you felt it necessary to go to such lengths to highlight a percieved flaw in another persons image. I could manipulate any one of your images to produce a gastly result too, I am not sure of your motivation, a bit sad really and rather unnecesary.
Don't worry, I'm not angry, just slightly dissapointed I guess  .
Mike
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Mike, I’m sorry to have disturbed you.  Rest assured my intentions were certainly not vindictive or as Peter puts it “chop’n the tall poppies”. I admire your effort and hold your work in high regard. To be honest, I’m surprised that you can’t handle constructive criticism. The manipulation of your image was to show the use of a tool to validate gradients. You may choose to use this in future or not. Sure, go ahead and trash/rework my images to highlight problems, I may learn a trick or two. This is the reason why I’ve started posting on other forums again such as SBIG… to get the constructive feedback. Again, Sorry.
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11-06-2008, 09:08 PM
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Galaxy hitchhiking guide
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Join Date: Dec 2007
Location: The Shire
Posts: 8,475
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Quote:
Originally Posted by jase
To be honest, I’m surprised that you can’t handle constructive criticism. ......................The manipulation of your image was to show the use of a tool to validate gradients...............
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Jase, Jase, Jase
I also could see that there were some small gradients in Mike's work even without the gamma burst.
Many of my images also have small gradients, doughnuts etc
But many imagers (self included) present their hard won photons "as is" and stretching/ enlarging them after the fact to buggery is a bit like running a UV light over a Picasso i.e. Who cares if it doesn't glow in the dark?
But with Mikes HOG image (...no offence Mike  ) The background levels are so painfully close to the signal that it is very hard to control them without altering the signal data. So you make a call, and often leave it as is. While I try to avoid getting there, I see no problem with this, so long as the overall signal makes the noise trivial.
Cheers
Peter
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11-06-2008, 09:19 PM
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Registered User
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Join Date: Sep 2006
Location: Melbourne, Victoria
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Point taken Peter.
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12-06-2008, 08:06 AM
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Highest Observatory in Oz
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Join Date: May 2006
Location: Canberra
Posts: 17,689
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Quote:
Originally Posted by Peter Ward
But with Mikes HOG image (...no offence Mike  ) The background levels are so painfully close to the signal that it is very hard to control them without altering the signal data. So you make a call, and often leave it as is. While I try to avoid getting there, I see no problem with this, so long as the overall signal makes the noise trivial.
Cheers
Peter
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Absolutely Peter, you're spot on there. This was taken from a suburban sky over long periods and large movements over the sky so subtle gradients through the very faint nebulosity were inevitable. To have worked harder on these gradients would indeed have altered the object signal too much for my liking.
Mike
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12-06-2008, 08:09 AM
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Highest Observatory in Oz
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Join Date: May 2006
Location: Canberra
Posts: 17,689
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Quote:
Originally Posted by jase
Mike, I’m sorry to have disturbed you.  Rest assured my intentions were certainly not vindictive or as Peter puts it “chop’n the tall poppies”. I admire your effort and hold your work in high regard. To be honest, I’m surprised that you can’t handle constructive criticism. The manipulation of your image was to show the use of a tool to validate gradients. You may choose to use this in future or not. Sure, go ahead and trash/rework my images to highlight problems, I may learn a trick or two. This is the reason why I’ve started posting on other forums again such as SBIG… to get the constructive feedback. Again, Sorry.
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No hard feelings Jase
There's a fine line between a "know all" teachers lecture and constructive critisism  .
Comments on an image is fine but as Peter says, a full crime scene investigation is just silly
Still love you and a beer sounds nice
Mike
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12-06-2008, 01:31 PM
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Billions and Billions ...
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Join Date: Mar 2007
Location: Quialigo, NSW
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Hmmmm, hope it's not too late to tell you what a stunning & beautiful image this is Mike!!   16 hours of data is a huge effort too! Well done!!
Cheers, Marcus
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12-06-2008, 05:16 PM
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Galaxy hitchhiking guide
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Join Date: Dec 2007
Location: The Shire
Posts: 8,475
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All bets now off.
I kept this RC data back until CWAS closed
http://www.atscope.com.au/BRO/galleryA1.html
Enjoy!
Peter
(It wasn't my RC! )
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12-06-2008, 05:50 PM
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Registered User
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Join Date: Aug 2005
Location: Hahndorf, South Australia
Posts: 4,373
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Quote:
Originally Posted by Peter Ward
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Good God!
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12-06-2008, 07:04 PM
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Highest Observatory in Oz
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Join Date: May 2006
Location: Canberra
Posts: 17,689
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Quote:
Originally Posted by Craig_L
Mysterious and wonderful image. Craig
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It's an awesome area I have always wanted to image since reading a David Malin publication that showcased it.
Quote:
Originally Posted by Peter Ward
Very tidy indeed Mike. Well Done 
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Thanks Peter, glad you liked it.
Quote:
Originally Posted by AlexN
Holy Crap!! 16 Hours of exposure!! Thats a marathon image!
Quite brilliant area too.. I'd never heard of it/seen it before..
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16hrs these days is on the average side really Alex, more data = better results as far as noise and signal go. Hard to do without a permanent setup though
Quote:
Originally Posted by Hagar
Another stunning image Mike, Your processing skill are great. The detail in the nebulus and dusty areas is spot on.
Something to aspire to.
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Thanks Doug, as Jase so graciously pointed out and Peter Ward explained, when imaging such faint objsects dealing with gradients is rather difficult. I didn't have too bad gradients actually and the result is preeeetty accurate I think
Quote:
Originally Posted by renormalised
Great shot, Mike
I wonder how many of those stars in that piccie are homes to the "bugs upstairs"??!!  
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Bugs what bugs?...where???
Quote:
Originally Posted by Lester
Fantastic image Mike.
Why 16 hours? Do you do a calculation as to the brightness of this object and how faint you want to go, or do you see what others have done with similar equipment?
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I knew it was faint and particularly in the Ha. Each 10min Ha sub had hardly anything on it and hence the 8hrs of it being necessary  . I image by the seat of my pants mate and go with gut feeling and educated guesses
Quote:
Originally Posted by h0ughy
This object has been very intriguing to me, great result Mike!!
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Cheers Dave
Quote:
Originally Posted by jjjnettie
Beautiful work Mike.
Love it.
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Glad about that Janette! I love the object too, the hand about to grab the galaxy is unique in the sky.
Quote:
Originally Posted by Robert_T
Sublime Mike... I like the larger view too you can visually swim about in this and come out feeling like you've been touched by the hand of god 
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Hallellulia Robert
Quote:
Originally Posted by Bassnut
Another deep one Mike, well done. Megadata is silly he  ?
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Silly VERY silly...without a permanent setup
Quote:
Originally Posted by rpsastronomy
Nice and intriguing image,i can see how it gets it,s name.
Well worth the effort .
A long time between images mike,i am sure the weather will come good soon 
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I am portable now so have to plan trips  so I need to make my sessions count.
Quote:
Originally Posted by Ric
What a stunning image Mike, I love the way it's reaching out to grab the galaxy.
A fantastic piece of work.
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Thanks heaps Ric I am really gald you enjoyed looking at it, it came together pretty well how I was hoping.
Quote:
Originally Posted by Tamtarn
It sure is an unusual object Mike. Agree with Ric it does look like it's reaching out to grab the galaxy. Well worth all your time and effort.
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Cherss guys.
Quote:
Originally Posted by Garyh
Very nice result Mike! 
Looks like a ghost floating in space grasping at a far away galaxy! just like everyone else says!
Top work!
cheers
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Or a worm..?
Quote:
Originally Posted by Alchemy
big project there mike, reminds me of the monster in the star wars movie just coming up for a feed. 
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Exactly my thoughts Clive!
Quote:
Originally Posted by Terry B
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Yes I found a few versions Terry but not many by amateurs, the Ha adds some depth though so the 8hrs of it I grabbed was worth it.
Quote:
Originally Posted by Peter Ward
Hey Mike.
Join the tall poppy club. You did good.
With Luck I'll see you at Parks (even if I don't rate this year with any images, CWAS has roped me in for a talk/presentation)
Cheers
Peter
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Tall Poppy?? big fat sunflower more like it
hope I get to hear your talk but if I don't hope it is well recieved, thanks for the support in ganging up on Jase too
Quote:
Originally Posted by spearo
Great shot of a very rarely imaged target!
I've been wondering about this target for some time since seeing a pic in my software
looks great
well done!
16 hours! That's dedication!
I love it!
frank
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AS mentioned, 16hrs is becoming common place these days Frank
Quote:
Originally Posted by marc4darkskies
Hmmmm, hope it's not too late to tell you what a stunning & beautiful image this is Mike!!   16 hours of data is a huge effort too! Well done!!
Cheers, Marcus
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Not too late at all Marcus thanks very much and yes 16hrs took me 4 nights in an 8 day period with a setup & pulldown rig!
Quote:
Originally Posted by Peter Ward
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Yes found this when I was looking for processing clues, amazing huh?
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13-06-2008, 06:14 PM
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Registered User
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Join Date: Jan 2005
Location: Newcastle, NSW, Australia
Posts: 4,116
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Another stunning image. yes, going so deep presents awful challenges to keep the field 100% flat, as no matter how accurate the flatfielding, one cannot guarantee the sky itself, particularily over large chip images will be perfectly even.
Quote:
Originally Posted by Peter Ward
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Yes, it is an RC scope alright, a 4 Metre one, bigger than the 3.9 metre AAT. The AAT has an F1 focal reducer system, imaging how deep that could go, though I dont know how big a corrected field it gives.
Note. Ive actually seen the brightest part of CG4 visually, at the inagural SPSP many moons ago, through Peter Brobroff's 20 inch dob, I verified it for him, confirming we both could see a definate nebulous area near that galaxy. I then pointed the ANSW's 16 inch dob to the same area and could see it there too!
Scott
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13-06-2008, 06:55 PM
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an overactive imagination
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Join Date: Dec 2007
Location: Erlistoun WA
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what a gorgeous pic!
any deeper and you'd see the nuts of god too!
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13-06-2008, 07:18 PM
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Highest Observatory in Oz
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Join Date: May 2006
Location: Canberra
Posts: 17,689
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Quote:
Originally Posted by tornado33
Another stunning image. yes, going so deep presents awful challenges to keep the field 100% flat, as no matter how accurate the flatfielding, one cannot guarantee the sky itself, particularily over large chip images will be perfectly even.
Yes, it is an RC scope alright, a 4 Metre one, bigger than the 3.9 metre AAT. The AAT has an F1 focal reducer system, imaging how deep that could go, though I dont know how big a corrected field it gives.
Note. Ive actually seen the brightest part of CG4 visually, at the inagural SPSP many moons ago, through Peter Brobroff's 20 inch dob, I verified it for him, confirming we both could see a definate nebulous area near that galaxy. I then pointed the ANSW's 16 inch dob to the same area and could see it there too!
Scott
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Thanks Scott and you are right, imaging over such a long period from East of the Zenith down to nearer the western horizon (didn't go below 25deg) does throw one challenges in processing but honestly the gradient damage done to this image wasn't too bad (although Jase just "had" to find its remains and make it known didn't he  ) becasue I tried doing as much of the colour gathering at higher elevations.
I believe you regarding seeing the brightest bit visually but the Halpha was bloody faint I can assure you, 8hrs was probably really only half of what I wanted with the KAI11002 chip and using 10min subs.
Quote:
Originally Posted by madtuna
what a gorgeous pic!
any deeper and you'd see the nuts of god too!
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 Yes they would be holly balls I guess
Glad you liked it...Mad Tuna..?? 
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14-06-2008, 11:04 AM
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Join Date: Mar 2007
Location: Laura
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Great image
I must give this one a go one-day. Mind you they should rename it, it doesn't look like the hand of God to me. It looks more like the Great and powerful Flying spaghetti Monster...reaching out his noodly appendage.
http://en.wikipedia.org/wiki/The_Gos...ghetti_Monster
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01-09-2008, 03:39 PM
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Sir Post a Lot!
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01-09-2008, 10:58 PM
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Support your local RFS
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Location: Wamboin NSW
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Well done Mike, a wonderful image to open your account.
Cheers mate.
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02-09-2008, 12:34 PM
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Registered User
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Join Date: Jul 2008
Location: Orlando, Florida, USA the home of...
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Awesome photo! The technical stuff swooshes over my head but it's a very interesting photo and I enjoyed looking it over.
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