Go Back   IceInSpace > Images > Deep Space

Reply
 
Thread Tools Rate Thread
  #1  
Old 18-06-2021, 06:06 PM
multiweb's Avatar
multiweb (Marc)
ze frogginator

multiweb is offline
 
Join Date: Oct 2007
Location: Hinchinbrook
Posts: 20,742
Carina widefield Duo band

This is a 7 panel mosaic I shot in January, end of March and early April with the FSQ106N/QHY9 and a zwo duoband filter. 35x300s for the center and about 20x600s each for the periphery. Seeing was ok for most of them but the bottom center and illumination difference with moon and others over the period it was captured so no perfect seams.

Obviously had to flatten the dynamic range a little over the whole field so the center is not too blown out while still showing outer field nebulosity.

I've added two little insets that might be planetary nebs which I haven't chased up yet to identify. See if you can find them in the 1:1 mosaic.

1:1 [7588x6490 - 24.7MB]
50% [3794x3245 - 8.4MB]
HD [1920x1642 - 2.3MB]

Enjoy the views.
Attached Thumbnails
Click for full-size image (Carina_FSQ106N_duo_sf.jpg)
196.9 KB70 views
Attached Images
  
Reply With Quote
  #2  
Old 18-06-2021, 07:17 PM
Alchemy (Clive)
Quietly watching

Alchemy is offline
 
Join Date: Jul 2007
Location: Yarra Junction
Posts: 3,044
You mentioned the moon, what effect does this have on the dual band filter ?

I canít see any seams on the 50% version
Reply With Quote
  #3  
Old 18-06-2021, 07:28 PM
multiweb's Avatar
multiweb (Marc)
ze frogginator

multiweb is offline
 
Join Date: Oct 2007
Location: Hinchinbrook
Posts: 20,742
Quote:
Originally Posted by Alchemy View Post
You mentioned the moon, what effect does this have on the dual band filter ?

I canít see any seams on the 50% version
It does affect the Oiii channel. Depending on transparency and humidity the sky tends to light up as well here because of LP so you quickly get gradients based on altitude. I guess I know where the seams are so I can't unsee them.
Reply With Quote
  #4  
Old 18-06-2021, 07:59 PM
JA
.....

JA is offline
 
Join Date: Oct 2016
Location: Melbourne, Australia
Posts: 2,091
Superb Mosaic Marc - It's a real revelation: as if I can see/notice new things in the nebula .... Well Done

Best
JA
Reply With Quote
  #5  
Old 18-06-2021, 10:46 PM
Ryderscope's Avatar
Ryderscope (Rodney)
Registered User

Ryderscope is offline
 
Join Date: May 2006
Location: Glanmire, NSW
Posts: 1,665
A top project Mark with a good result making the effort worthwhile.
Reply With Quote
  #6  
Old 18-06-2021, 11:09 PM
Dave882 (David)
Registered User

Dave882 is offline
 
Join Date: Nov 2020
Location: PADSTOW
Posts: 56
Great work! Very enjoyable scanning through the full res version. So much detail to take in. Didn’t even notice the seams tbh
Reply With Quote
  #7  
Old 19-06-2021, 07:14 AM
vlazg's Avatar
vlazg (George)
Registered User

vlazg is offline
 
Join Date: May 2014
Location: Darwin
Posts: 688
Great work Marc, the heat and humidity up here at higher latitudes does have an affect..
Reply With Quote
  #8  
Old 19-06-2021, 01:03 PM
multiweb's Avatar
multiweb (Marc)
ze frogginator

multiweb is offline
 
Join Date: Oct 2007
Location: Hinchinbrook
Posts: 20,742
Quote:
Originally Posted by JA View Post
Superb Mosaic Marc - It's a real revelation: as if I can see/notice new things in the nebula .... Well Done

Best
JA
Thanks JA. Yeah mosaics with a bit of resolution are great to pan around.

Quote:
Originally Posted by Ryderscope View Post
A top project Mark with a good result making the effort worthwhile.
Thanks Rodney.

Quote:
Originally Posted by Dave882 View Post
Great work! Very enjoyable scanning through the full res version. So much detail to take in. Didnít even notice the seams tbh
Thanks Dave. There are a few issues and one panel that I wanted to reshoot completely but other things got in the way and I haven't had the time.

Quote:
Originally Posted by vlazg View Post
Great work Marc, the heat and humidity up here at higher latitudes does have an affect..
Thanks mate. Not so much humidity here by LP latches on anything that affects transparency.
Reply With Quote
  #9  
Old 19-06-2021, 01:15 PM
Nikolas's Avatar
Nikolas (Nik)
Dazed and confused

Nikolas is offline
 
Join Date: May 2012
Location: Melbourne
Posts: 2,176
If you use astropixel processor you can eliminate those seams using LNC x2 or 3, you can tune it to see, worked well for my Dragon shot where I used 2 different focal lengths. From 2 different nights.
Reply With Quote
  #10  
Old 19-06-2021, 01:37 PM
multiweb's Avatar
multiweb (Marc)
ze frogginator

multiweb is offline
 
Join Date: Oct 2007
Location: Hinchinbrook
Posts: 20,742
Quote:
Originally Posted by Nikolas View Post
If you use astropixel processor you can eliminate those seams using LNC x2 or 3, you can tune it to see, worked well for my Dragon shot where I used 2 different focal lengths. From 2 different nights.
The main issue is that I minimised the overlap by deleting parts of the bad panel to force the autoblend in PS on using the good ones. The result is a marked boundary because of the difference in noise and brightness/contrast. I'm not familiar with APP but will give it a go.
Reply With Quote
  #11  
Old 19-06-2021, 02:26 PM
matlud (Mathew)
Registered User

matlud is offline
 
Join Date: Jun 2015
Location: NZ
Posts: 52
Very nice mosaic Marc, lots of nice detail 👍
Reply With Quote
  #12  
Old 22-06-2021, 12:43 PM
multiweb's Avatar
multiweb (Marc)
ze frogginator

multiweb is offline
 
Join Date: Oct 2007
Location: Hinchinbrook
Posts: 20,742
Quote:
Originally Posted by matlud View Post
Very nice mosaic Marc, lots of nice detail 👍
Thanks Mathew.
Reply With Quote
  #13  
Old 23-06-2021, 03:03 PM
Retrograde's Avatar
Retrograde (Pete)
a.k.a. @AstroscapePete

Retrograde is offline
 
Join Date: Oct 2011
Location: Sydney
Posts: 1,280
Great detail in the high-res and some nice, wispy extensions.
Didn't have the patience to track down the suspected PNs though!
Reply With Quote
  #14  
Old 29-06-2021, 01:39 PM
multiweb's Avatar
multiweb (Marc)
ze frogginator

multiweb is offline
 
Join Date: Oct 2007
Location: Hinchinbrook
Posts: 20,742
Quote:
Originally Posted by Retrograde View Post
Great detail in the high-res and some nice, wispy extensions.
Didn't have the patience to track down the suspected PNs though!
Thanks Pete. Tried to plate solve with unimap but no luck so far.
Reply With Quote
  #15  
Old 29-06-2021, 04:59 PM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 17,043
A great expansive view there Marc with some wonderful sharpness.

Its good to see the whole of Eta in one image.

Greg.
Reply With Quote
  #16  
Old 01-07-2021, 04:27 PM
rustigsmed's Avatar
rustigsmed (Russell)
Registered User

rustigsmed is offline
 
Join Date: Mar 2012
Location: Mornington Peninsula, Australia
Posts: 3,548
excellent work marc - love the 1:1 version - great star shapes and excellent detail.

cheers
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 06:13 AM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Advertisement
Bintel
Advertisement
Testar
Advertisement
NexDome Observatories
Advertisement
Limpet Controller
Advertisement
Astronomy and Electronics Centre
Advertisement