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

Reply
 
Thread Tools Rate Thread
  #1  
Old 01-01-2014, 04:02 PM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 18,183
NGC1935 a superhole nebula in the LMC

This was a recent diversion from a run of galaxy imaging which I am still in the middle of.

Superhole in the LMC. An interesting nebula with a wind blown section which creates interesting shapes.

A quick bicolour image. I took a lot more but it didn't get saved due to a full hard disk!

CDK17 and reducer at F4.5. Starlight Express Trius 694 and Astrodon 5nm Ha and O111 filters.

http://upload.pbase.com/gregbradley/...53978568/large

Greg.
Attached Thumbnails
Click for full-size image (NGC1935 Ha O111 70 20 V3 thumbnail.jpg)
180.5 KB143 views
Reply With Quote
  #2  
Old 01-01-2014, 04:18 PM
rat156's Avatar
rat156
Registered User

rat156 is offline
 
Join Date: Aug 2005
Location: Melbourne
Posts: 1,696
Hi Greg,

That's quite a nice image. When you say Bicolour, did you map the Ha to red, the OIII to green and blue?

It's a shame about your full hard disk, they're really quite cheap these days, sometimes I don't even bother to back them up, I just copy everything over to a new (much larger) disk and then install that. Using a Mac for imaging makes this a snap.

Cheers
Stuart
Reply With Quote
  #3  
Old 01-01-2014, 04:24 PM
Stevec35 (Steve)
Registered User

Stevec35 is offline
 
Join Date: Aug 2010
Location: Canberra
Posts: 3,654
Good start on this one Greg. I did it a few years ago and found it a pain to process.

Cheers

Steve
Reply With Quote
  #4  
Old 01-01-2014, 04:46 PM
astronobob's Avatar
astronobob (Bob)
Casual Cosmos Capturer

astronobob is offline
 
Join Date: Jun 2010
Location: Gold Coast SE QLD
Posts: 4,472
Thats different Greg, trippy looking object, nice smooth result, dig the central cluster, like a mini rossette
Appreciate your captures you share here, very inspiring for many, im sure Top show
Reply With Quote
  #5  
Old 01-01-2014, 04:51 PM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 18,183
Quote:
Originally Posted by rat156 View Post
Hi Greg,

That's quite a nice image. When you say Bicolour, did you map the Ha to red, the OIII to green and blue?

It's a shame about your full hard disk, they're really quite cheap these days, sometimes I don't even bother to back them up, I just copy everything over to a new (much larger) disk and then install that. Using a Mac for imaging makes this a snap.

Cheers
Stuart
Ha to red O111 to blue and (Ha +O111)/2 to green.
Yes they are cheap but quite flimsy and easily fail.

Greg.

Quote:
Originally Posted by Stevec35 View Post
Good start on this one Greg. I did it a few years ago and found it a pain to process.

Cheers

Steve
Thanks Steve. I'll take some more between galaxies! I think it also needs some decent seeing as its quite small.

Greg.

Quote:
Originally Posted by astronobob View Post
Thats different Greg, trippy looking object, nice smooth result, dig the central cluster, like a mini rossette
Appreciate your captures you share here, very inspiring for many, im sure Top show
Thanks for that. It is quite unusual and I appreciate your encouraging words.

Greg.
Reply With Quote
  #6  
Old 01-01-2014, 05:01 PM
RickS's Avatar
RickS (Rick)
PI cult recruiter

RickS is offline
 
Join Date: Apr 2010
Location: Brisbane
Posts: 10,584
Some very cool structures there, Greg. Would be good to see with some more data. Shame you lost some.
Reply With Quote
  #7  
Old 02-01-2014, 12:42 AM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 18,183
Quote:
Originally Posted by RickS View Post
Some very cool structures there, Greg. Would be good to see with some more data. Shame you lost some.
Hopefully its up for a while and I can get some more data for it.

Greg.
Reply With Quote
  #8  
Old 02-01-2014, 03:25 AM
strongmanmike's Avatar
strongmanmike (Michael)
Highest Observatory in Oz

strongmanmike is offline
 
Join Date: May 2006
Location: Canberra
Posts: 17,689
I like the colours Greg and with more data this will be a cracker!

Actually I made a start on this too some time ago, at the end of a galaxy imaging run none the less ie a fill-in image ....must go back and complete it.

Mike
Reply With Quote
  #9  
Old 02-01-2014, 08:45 AM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 18,183
Quote:
Originally Posted by strongmanmike View Post
I like the colours Greg and with more data this will be a cracker!

Actually I made a start on this too some time ago, at the end of a galaxy imaging run none the less ie a fill-in image ....must go back and complete it.

Mike
Thanks Mike. Yes its a worthwhile target. I imaged it in Ha only a few years ago and always meant to come back to it. I think it needs decent seeing as well, so a night with good seeing and the moon up would be a good time.

Greg.
Reply With Quote
  #10  
Old 02-01-2014, 11:44 AM
dvj's Avatar
dvj (John)
Registered User

dvj is offline
 
Join Date: Oct 2011
Location: U.S.A
Posts: 755
Excellent work on this one Greg. Rarely imaged. Nice to see your touch on it.

j
Reply With Quote
  #11  
Old 03-01-2014, 08:09 AM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 18,183
Quote:
Originally Posted by dvj View Post
Excellent work on this one Greg. Rarely imaged. Nice to see your touch on it.

j
Thanks John. I plan to do a more extensive image of it.

Greg.
Reply With Quote
  #12  
Old 03-01-2014, 09:29 AM
Ross G
Registered User

Ross G is offline
 
Join Date: Apr 2007
Location: Cherrybrook, NSW
Posts: 5,013
Great photo Greg.

Love the detail.

Ross.
Reply With Quote
  #13  
Old 04-01-2014, 08:57 AM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 18,183
Thanks Ross. These LMC nebulas are a rich source of imaging targets for us. I see a massive rise in the number of them being imaged now which is great. Hardly any were being imaged a year or two ago beyond the Tarantula or widefield images of the LMC.

Greg.
Reply With Quote
  #14  
Old 04-01-2014, 10:47 AM
jsmoraes's Avatar
jsmoraes (Jorge)
Registered User

jsmoraes is offline
 
Join Date: Apr 2012
Location: Saquarema, RJ , Brazil
Posts: 1,102
Wow! Very very beautiful! I am trying LMC, now. Maybe I get something, but never will be similar.
Reply With Quote
  #15  
Old 04-01-2014, 12:04 PM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 18,183
Quote:
Originally Posted by jsmoraes View Post
Wow! Very very beautiful! I am trying LMC, now. Maybe I get something, but never will be similar.
Thanks Jorge. Its a very rich area for imaging these unusual nebulas.

Greg.
Reply With Quote
  #16  
Old 04-01-2014, 12:12 PM
Geoff45's Avatar
Geoff45 (Geoff)
PI rules

Geoff45 is offline
 
Join Date: Jul 2006
Location: Sydney
Posts: 2,631
Really weird shapes in that nebula! I like the colour mapping. I often find Ha to red and OIII to both blue and green works well, but it doesn't work in this case.
Geoff
Reply With Quote
  #17  
Old 04-01-2014, 06:15 PM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 18,183
Quote:
Originally Posted by ghsmith45 View Post
Really weird shapes in that nebula! I like the colour mapping. I often find Ha to red and OIII to both blue and green works well, but it doesn't work in this case.
Geoff
Thanks Geoff.

Greg.
Reply With Quote
  #18  
Old 05-01-2014, 11:14 PM
Shiraz's Avatar
Shiraz (Ray)
Registered User

Shiraz is offline
 
Join Date: Apr 2010
Location: ardrossan south australia
Posts: 4,918
Nice work Greg - you are getting excellent results from that combo.
Reply With Quote
  #19  
Old 06-01-2014, 02:00 PM
gregbradley's Avatar
gregbradley
Registered User

gregbradley is offline
 
Join Date: Feb 2006
Location: Sydney
Posts: 18,183
Quote:
Originally Posted by Shiraz View Post
Nice work Greg - you are getting excellent results from that combo.

Thanks Ray. I'll shot some more with it and post a deeper shot soon.

Greg.
Reply With Quote
  #20  
Old 06-01-2014, 02:18 PM
marco's Avatar
marco (Marco Lorenzi)
Registered User

marco is offline
 
Join Date: Aug 2009
Location: Singapore
Posts: 933
Unusual colors but amazing details Greg, you must have a very stable seeing to get these details at less than 0.5"/px sampling! Impressive..

Clear skies
Marco
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 03:28 AM.

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