Go Back   IceInSpace > Images > Deep Space

Reply
 
Thread Tools Rate Thread
  #1  
Old 24-09-2018, 03:42 PM
Andy01's Avatar
Andy01 (Andy)
My God it's full of stars

Andy01 is offline
 
Join Date: Mar 2012
Location: Melbourne
Posts: 3,253
NGC 300 - first baby steps into Galaxy imaging

Like the title suggests, here is my first attempt at a galaxy.

Hard to believe that it's taken almost a year to get my RC8 going correctly, but it now has a motorized Moonlite focuser, the correct spacers for the camera, a second counterweight on the dovetail for balance, the dew heater installed on the secondary and most importantly it's finally collimated!

So after all that - the planets aligned with no family duties, my mate's property in the country being available, on a clear night, without too much moon etc. to give this thing a proper hit out.

This is just 2.5 hrs of LUM (10min subs) and an hour of each RG&B (5min subs) from the dark site, with a further 4 hrs of Ha added from home.

Needs another night's data to clear up the noise, smooth it out and get some detail going - as I've probably pushed what little data I have pretty hard

Would welcome any suggestions for tutorials etc. as my LRGB processing need work!

Bigger one is HERE - don't look to closely! lol
Attached Thumbnails
Click for full-size image (HaLRGB_NGC300_IIS.jpg)
154.3 KB135 views
Reply With Quote
  #2  
Old 24-09-2018, 03:53 PM
RickS's Avatar
RickS (Rick)
PI cult recruiter

RickS is offline
 
Join Date: Apr 2010
Location: Brisbane
Posts: 10,584
A great start, Andy, but as you suggest it looks like more data is needed I can't help with a workflow unless you become a cult member

Cheers,
Rick.
Reply With Quote
  #3  
Old 24-09-2018, 03:56 PM
multiweb's Avatar
multiweb (Marc)
ze frogginator

multiweb is offline
 
Join Date: Oct 2007
Location: Sydney
Posts: 22,060
Good details. Looks a little purple in the center. I reckon that's meant to be yellowish instead. (green also works)
Reply With Quote
  #4  
Old 24-09-2018, 05:34 PM
alpal's Avatar
alpal
Registered User

alpal is offline
 
Join Date: Jan 2012
Location: Melbourne
Posts: 3,602
Hi Andy,
that's 10 times better than I ever did.
You're going well.


cheers
Allan
Reply With Quote
  #5  
Old 24-09-2018, 06:12 PM
silv's Avatar
silv (Annette)
Registered User

silv is offline
 
Join Date: Apr 2012
Location: Germany 54°N
Posts: 1,110
Quote:
Originally Posted by multiweb View Post
Good details. Looks a little purple in the center. I reckon that's meant to be yellowish instead. (green also works)
On Astrobin, Andy uploaded the 1st version, too, which is yellow in the center. (right hand column where it says "Revisions"). But that 1st processing has a lot less spiral arms detail.
Reply With Quote
  #6  
Old 25-09-2018, 09:25 AM
strongmanmike's Avatar
strongmanmike (Michael)
Highest Observatory in Oz

strongmanmike is offline
 
Join Date: May 2006
Location: Canberra
Posts: 17,150
Congrats on your first galaxy shot Andy

Overall not bad mate, some neatening up required, bit less magenta in the core region and the stars look a little blobby and flarey with perhaps some miss registration but I am sure all this will improve in due course.

Welcome to real imaging

Mike
Reply With Quote
  #7  
Old 25-09-2018, 09:44 AM
Andy01's Avatar
Andy01 (Andy)
My God it's full of stars

Andy01 is offline
 
Join Date: Mar 2012
Location: Melbourne
Posts: 3,253
Quote:
Originally Posted by RickS View Post
A great start, Andy, but as you suggest it looks like more data is needed I can't help with a workflow unless you become a cult member

Cheers,
Rick.
LOL, cheers Rick - not planning to cross over to the dark side anytime soon, I'm to used to using PS.

Quote:
Originally Posted by multiweb View Post
Good details. Looks a little purple in the center. I reckon that's meant to be yellowish instead. (green also works)
Thanks Marc, yes I see what you mean about the colour - makes cosmic sense too as it's likely that older yellow stars are located in the middle of the galaxy.

Quote:
Originally Posted by alpal View Post
Hi Andy,
that's 10 times better than I ever did.
You're going well.


cheers
Allan
Nice of you to say so Allan, cheers mate

Quote:
Originally Posted by silv View Post
On Astrobin, Andy uploaded the 1st version, too, which is yellow in the center. (right hand column where it says "Revisions"). But that 1st processing has a lot less spiral arms detail.
Thanks Silv, yes that first process was pretty quick & dirty - I spent much more time on round two. Still learning LRGB processing

Quote:
Originally Posted by strongmanmike View Post
Congrats on your first galaxy shot Andy

Overall not bad mate, some neatening up required, bit less magenta in the core region and the stars look a little blobby and flarey with perhaps some miss registration but I am sure all this will improve in due course.

Welcome to real imaging

Mike
Cheers Mike, agreed about the colour and in my next process I'll use Registar for better and more accurate registration than the Nebulosity workaround I used here.

Believe it or not, I'm still working on fine tuning the best methods for basic stretching of the stacked L, R, G & B images. If I can get that sorted, I reckon that's half the job done!

Thanks for all you feedback folks!
Reply With Quote
  #8  
Old 25-09-2018, 02:22 PM
Placidus (Mike and Trish)
Narrowing the band

Placidus is offline
 
Join Date: Mar 2011
Location: Euchareena, NSW
Posts: 3,719
That's an amazingly good first galaxy Andy.

I had a go on a copy trying to get the colour right (yellow centre, blue dots in the spiral arms, red for the HII regions), but it didn't want to. That suggests that the problem crept in earlier in processing, and it isn't just a final tweak.

Well done!

Mike
Reply With Quote
  #9  
Old 25-09-2018, 06:52 PM
willik (Willik)
Registered User

willik is offline
 
Join Date: Nov 2009
Location: Perth WA
Posts: 715
HI Andy
Very nice image of the NGC300 not a easy image to take the spiral arms are hard to get detail out but still it is a very nice image
Martin
Reply With Quote
  #10  
Old 26-09-2018, 05:43 AM
codemonkey's Avatar
codemonkey (Lee)
Lee "Wormsy" Borsboom

codemonkey is offline
 
Join Date: Jul 2013
Location: Kilcoy, QLD
Posts: 2,058
Ha. You picked a good first target there Andy; NGC 300 is pretty dim, certainly not an easy one. Solid effort... I can't even imagine what my first galaxy image would have been like had I tried NGC 300.

I notice there's some banding on the top of the frame... if you had PixInsight I'd suggest trying the canon banding removal script... not sure what you can do about it with PS.
Reply With Quote
  #11  
Old 26-09-2018, 06:45 AM
Andy01's Avatar
Andy01 (Andy)
My God it's full of stars

Andy01 is offline
 
Join Date: Mar 2012
Location: Melbourne
Posts: 3,253
Quote:
Originally Posted by Placidus View Post
That's an amazingly good first galaxy Andy.

I had a go on a copy trying to get the colour right (yellow centre, blue dots in the spiral arms, red for the HII regions), but it didn't want to. That suggests that the problem crept in earlier in processing, and it isn't just a final tweak.

Well done!

Mike
Cheers Mike - I suspect the core colour problem lies with my inexperience with basic stretching of the RG&B - not too sure exactly what I'm aiming for there, but I'm learning!

Quote:
Originally Posted by willik View Post
HI Andy
Very nice image of the NGC300 not a easy image to take the spiral arms are hard to get detail out but still it is a very nice image
Martin
Thanks Martin - it's a very beautiful target - hopefully next time round I can do it justice!

Quote:
Originally Posted by codemonkey View Post
Ha. You picked a good first target there Andy; NGC 300 is pretty dim, certainly not an easy one. Solid effort... I can't even imagine what my first galaxy image would have been like had I tried NGC 300.

I notice there's some banding on the top of the frame... if you had PixInsight I'd suggest trying the canon banding removal script... not sure what you can do about it with PS.
Cheers Lee - Dim but pretty - worth persevering with I reckon - will see how I go next time out to the dark site. That banding is wierd though, it's in all the subs - might have to redo the flats & darks to see if it's something that has crept in there.
Reply With Quote
  #12  
Old 26-09-2018, 06:06 PM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 17,877
Nice job Andy. A great first galaxy image.

Greg.
Reply With Quote
  #13  
Old 28-09-2018, 07:45 AM
Ross G
Registered User

Ross G is offline
 
Join Date: Apr 2007
Location: Cherrybrook, NSW
Posts: 5,006
A great looking first time galaxy photo Andy.


Looking forward to more.


Good luck.
Ross.
Reply With Quote
  #14  
Old 04-10-2018, 02:53 PM
Andy01's Avatar
Andy01 (Andy)
My God it's full of stars

Andy01 is offline
 
Join Date: Mar 2012
Location: Melbourne
Posts: 3,253
cheers Greg & Ross, thanks again too Mike.

I've attempted to re-align the stars in this newly re-processed version.

Cheers

Andy
Reply With Quote
Reply

Bookmarks

Thread Tools
Rate This Thread
Rate This Thread:

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 04:03 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Advertisement
Testar
Advertisement
Bintel
Advertisement