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

Reply
 
Thread Tools Rate Thread
  #1  
Old 21-01-2015, 08:05 PM
Ross G
Registered User

Ross G is offline
 
Join Date: Apr 2007
Location: Cherrybrook, NSW
Posts: 5,013
Chameleon Cloud - IC2631 from Coona

Hello,

It has been a very busy 6 months.
I am still processing photos from my Coonabarabran dark site trip in July last year!

This is the Chameleon Cloud near the South Celestial Pole, featuring the Reflection Nebula IC2631.

I had originally photographed this object in January last year, my previous trip to Coonabarabran.
I have combined the images from both trips (..a first for me!..) to produce this photo, totalling 800 minutes of exposure.

Large photo here http://smu.gs/1CzT91D

Original size photo here http://smu.gs/1CzTmBP

What do you think?

Thanks for looking.

Ross.


52 frames of 20 minute and 10 minute exposures, totalling 800 minutes.

TELEVUE NP101 101mm F5.4 Refractor.
QHY8L OSC CCD.
Skywatcher NEQ6Pro mount.

WO 66mm guide scope.
QHY5-II guide camera.

Guiding with PHD2
Capture with Ezycap
Processing with DeepSkyStacker & Photoshop CS2
Attached Thumbnails
Click for full-size image (Chameleon Cloud IIS.jpg)
197.9 KB98 views
Reply With Quote
  #2  
Old 21-01-2015, 08:22 PM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 18,175
I like that a lot Ross. What was the equipment used?

Greg.
Reply With Quote
  #3  
Old 21-01-2015, 08:25 PM
RickS's Avatar
RickS (Rick)
PI cult recruiter

RickS is offline
 
Join Date: Apr 2010
Location: Brisbane
Posts: 10,584
Really nice, Ross. Dark nebs are always tricky and you've done a great job.

Cheers,
Rick.
Reply With Quote
  #4  
Old 21-01-2015, 09:01 PM
multiweb's Avatar
multiweb (Marc)
ze frogginator

multiweb is offline
 
Join Date: Oct 2007
Location: Sydney
Posts: 22,078
Wow! That's awesome Ross. So much going on in that field. The colors are just superb and lot of details. Top shelf.
Reply With Quote
  #5  
Old 21-01-2015, 09:33 PM
Placidus (Mike and Trish)
Narrowing the band

Placidus is offline
 
Join Date: Mar 2011
Location: Euchareena, NSW
Posts: 3,719
Hi, Ross,

Followed the links back and hunted round your web site. Astonishing how much you've done. Superb ultra-wide-field stuff.

This fellow in Chamaeleon is most unusual and off the beaten path. Nicely done.

Best,
Mike
Reply With Quote
  #6  
Old 21-01-2015, 10:06 PM
marc4darkskies's Avatar
marc4darkskies (Marcus)
Billions and Billions ...

marc4darkskies is offline
 
Join Date: Mar 2007
Location: Quialigo, NSW
Posts: 3,143
Great colour, great composition and good depth Ross! I like it a lot. Nicely done! The star shapes do detract a bit from the full res though.

Cheers, Marcus
Reply With Quote
  #7  
Old 22-01-2015, 08:48 AM
strongmanmike's Avatar
strongmanmike (Michael)
Highest Observatory in Oz

strongmanmike is offline
 
Join Date: May 2006
Location: Canberra
Posts: 17,658
Clean this image up Ross!..I've not seen an image this dusty in a long time, it's digusting

Great job, this area is not really imaged too often but when it is the reward can be a smokey, mysterious and intriguing result like this ..yeah some dodgy stars but just post it less than full res so nobody notices (hey Marcus? )

Mike
Reply With Quote
  #8  
Old 22-01-2015, 09:07 AM
Geoff45's Avatar
Geoff45 (Geoff)
PI rules

Geoff45 is offline
 
Join Date: Jul 2006
Location: Sydney
Posts: 2,631
Beautiful Ross! Looks like a good candidate for drizzle to up the resolution.
Geoff
Reply With Quote
  #9  
Old 22-01-2015, 06:59 PM
atalas's Avatar
atalas
Registered User

atalas is offline
 
Join Date: Mar 2005
Location: Sydney
Posts: 5,151
Its hell of a field Ross....great work!
Reply With Quote
  #10  
Old 22-01-2015, 09:51 PM
Ross G
Registered User

Ross G is offline
 
Join Date: Apr 2007
Location: Cherrybrook, NSW
Posts: 5,013
Quote:
Originally Posted by gregbradley View Post
I like that a lot Ross. What was the equipment used?

Greg.
Glad you like it Greg.
My equipment was a Televue 101mm F5.4 refractor and a QHY8L osc ccd.

Thanks.

Quote:
Originally Posted by RickS View Post
Really nice, Ross. Dark nebs are always tricky and you've done a great job.

Cheers,
Rick.
Thanks Rick.

It took a few versions without many reference photos for guidance.

Quote:
Originally Posted by multiweb View Post
Wow! That's awesome Ross. So much going on in that field. The colors are just superb and lot of details. Top shelf.
Thank you Marc.
Reply With Quote
  #11  
Old 22-01-2015, 10:07 PM
Ross G
Registered User

Ross G is offline
 
Join Date: Apr 2007
Location: Cherrybrook, NSW
Posts: 5,013
Quote:
Originally Posted by marc4darkskies View Post
Great colour, great composition and good depth Ross! I like it a lot. Nicely done! The star shapes do detract a bit from the full res though.

Cheers, Marcus
Thanks Marcus.
Glad you like it and I really appreciate the feedback.

The stars do need fixing. I don't know whether it's the camera flexing on the focus tube (..it overhangs by about 8" plus the cables..), bad polar alignment or from combining 2 different sets of data from different trips.


Quote:
Originally Posted by strongmanmike View Post
Clean this image up Ross!..I've not seen an image this dusty in a long time, it's digusting

Great job, this area is not really imaged too often but when it is the reward can be a smokey, mysterious and intriguing result like this ..yeah some dodgy stars but just post it less than full res so nobody notices (hey Marcus? )

Mike
Thanks Mike.
I'm always happy when you like my photos!

It's always scary to show at full resolution but the feedback has always helped me.

Quote:
Originally Posted by Placidus View Post
Hi, Ross,

Followed the links back and hunted round your web site. Astonishing how much you've done. Superb ultra-wide-field stuff.

This fellow in Chamaeleon is most unusual and off the beaten path. Nicely done.

Best,
Mike
Thanks Mike and glad you like my site. It's in need of updating but it has helped me organise and share my photos.
Reply With Quote
  #12  
Old 22-01-2015, 10:12 PM
Ross G
Registered User

Ross G is offline
 
Join Date: Apr 2007
Location: Cherrybrook, NSW
Posts: 5,013
Quote:
Originally Posted by ghsmith45 View Post
Beautiful Ross! Looks like a good candidate for drizzle to up the resolution.
Geoff
Thanks Geoff. Glad you like it.

Please tell me more about "drizzle".

Quote:
Originally Posted by atalas View Post
Its hell of a field Ross....great work!
Hi Louie...thanks!

...and thank you for showing this object to me....I didn't know it existed!
Reply With Quote
  #13  
Old 22-01-2015, 10:38 PM
AstroJason's Avatar
AstroJason (Jason)
Registered User

AstroJason is offline
 
Join Date: Oct 2012
Location: Blue Mountains
Posts: 617
Wow Ross, that is a nice image of the dark dust in Chameleon. Really top work that and love the colours you have brought out. I tried imaging it late last year and processing it was a tough job, but this is just fantastic! Top stuff mate.
Reply With Quote
  #14  
Old 22-01-2015, 11:03 PM
Rod771's Avatar
Rod771 (Rod)
Turn the lights off!

Rod771 is offline
 
Join Date: Aug 2012
Location: Parklea NSW
Posts: 1,207
Certainly took advantage of the dark sky there Ross! That is very nice image, I like the dark dusty ones.

Excellent work, well done!
Reply With Quote
  #15  
Old 22-01-2015, 11:06 PM
Leonardo70's Avatar
Leonardo70 (Leonardo Orazi)
Registered User

Leonardo70 is offline
 
Join Date: May 2009
Location: Italy - Turin
Posts: 771
Very nice Ross.

All the best,
Leo
Reply With Quote
  #16  
Old 22-01-2015, 11:34 PM
Stevec35 (Steve)
Registered User

Stevec35 is offline
 
Join Date: Aug 2010
Location: Canberra
Posts: 3,654
Very attractive image Ross! I like it a lot.

Cheers

Steve
Reply With Quote
  #17  
Old 23-01-2015, 04:30 PM
Geoff45's Avatar
Geoff45 (Geoff)
PI rules

Geoff45 is offline
 
Join Date: Jul 2006
Location: Sydney
Posts: 2,631
Quote:
Originally Posted by Ross G View Post
Thanks Geoff. Glad you like it.

Please tell me more about "drizzle".
Drizzle is a technique for increasing resolution in undersampled images, ie those showing "blocky" stars.

http://en.wikipedia.org/wiki/Drizzle..._processing%29
http://www.stark-labs.com/craig/arti...rizzle_API.pdf

Three essentials are necessary: At least 15-20 subs, dithered subs, undersampled image.
The technique has recently been implemented in PixInsight:
http://pixinsight.com/forum/index.php?topic=7151.0

I think it can also be done in Maxim, but I'm not sure.
Reply With Quote
  #18  
Old 24-01-2015, 12:35 PM
Paul Haese's Avatar
Paul Haese
Registered User

Paul Haese is offline
 
Join Date: Jan 2009
Location: Adelaide
Posts: 9,991
Nice rendition of this very dusty part of the sky. I like the luminance, colour and field of view. The high res looks a little like minimum filter was applied too much to reduce the stars; if that is the case maybe just ease back on that a little. Overall though I really think it is a winner. The elongated stars in the corners are only evident at full resolution and those could be cropped out for the most severe parts.
Reply With Quote
  #19  
Old 26-01-2015, 11:42 PM
Ross G
Registered User

Ross G is offline
 
Join Date: Apr 2007
Location: Cherrybrook, NSW
Posts: 5,013
Quote:
Originally Posted by Stevec35 View Post
Very attractive image Ross! I like it a lot.

Cheers

Steve
Thanks Steve.
Glad you like it!

Quote:
Originally Posted by Leonardo70 View Post
Very nice Ross.

All the best,
Leo
Thank you Leo.

Quote:
Originally Posted by Rod771 View Post
Certainly took advantage of the dark sky there Ross! That is very nice image, I like the dark dusty ones.

Excellent work, well done!
Thanks Rod.
This photo would not have been possible with my equipment if it wasn't for the dark skies of Coonabarabran.
It's astrophotography "on steroids" when you image from Coona!

Quote:
Originally Posted by AstroJason View Post
Wow Ross, that is a nice image of the dark dust in Chameleon. Really top work that and love the colours you have brought out. I tried imaging it late last year and processing it was a tough job, but this is just fantastic! Top stuff mate.
Thanks Jason. Glad you like it.
It is a difficult object to process. I tried many versions!
I really liked your widefield version.
Reply With Quote
  #20  
Old 26-01-2015, 11:43 PM
Ross G
Registered User

Ross G is offline
 
Join Date: Apr 2007
Location: Cherrybrook, NSW
Posts: 5,013
Quote:
Originally Posted by ghsmith45 View Post
Drizzle is a technique for increasing resolution in undersampled images, ie those showing "blocky" stars.

http://en.wikipedia.org/wiki/Drizzle..._processing%29
http://www.stark-labs.com/craig/arti...rizzle_API.pdf

Three essentials are necessary: At least 15-20 subs, dithered subs, undersampled image.
The technique has recently been implemented in PixInsight:
http://pixinsight.com/forum/index.php?topic=7151.0

I think it can also be done in Maxim, but I'm not sure.
Thanks for the links Geoff. I'll do some reading.
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 09:02 AM.

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