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Old 26-10-2015, 08:31 PM
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Andy01 (Andy)
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NGC 1760 - The Tasmanian Devil (UPDATED)

Work in progress on this relatively unpopular target in the LMC.

This bizarre shaped little nebula reminds me of the Tasmanian Devil from Looney Tunes.

Fred & Paul have previously posted their own stunning versions, and inspired by them I attempted it last year - but now 12 months later I hope to do it more justice this time around.

Just 5 hrs Ha in 20min subs so far, the Ha is still only 1/3 of the data required as I'm hoping for a full 30Hr+ NB workup on this one

•UPDATED High res version now with 12Hrs Ha data here, much clearer - http://www.astrobin.com/full/222206/B/

cheers
Andy

--- --- ---

(UPDATE) Finished image, now in Colour - High Res here - http://www.astrobin.com/222206/C/

11.5 hrs 5nm Ha 1200 sec subs
6.5 hrs 5nm S2 Binx2 900 sec subs
4 Hrs 5nm O3 900 sec subs

15x60sec ea RGB stars

C & C welcome

cheers
Andy
Attached Thumbnails
Click for full-size image (Ha-Final-Shrunk-Cropped_IIS.jpg)
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Click for full-size image (tasmaniandevil-tornado_color_3.jpg)
64.1 KB59 views
Click for full-size image (Ha11Hrs_IIS.jpg)
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Click for full-size image (attachmentJ4BH4ME7.jpg)
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Last edited by RB; 23-11-2015 at 01:48 PM. Reason: Updated image
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  #2  
Old 26-10-2015, 09:16 PM
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Ryderscope (Rodney)
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Coming along nicely Andy. Good catch with that little globular in the foreground as well.
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Old 26-10-2015, 09:47 PM
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I was looking at the image I did of this earlier this evening and assessing if I would do it with the RC. I decided against it this year, but it is an interesting object. I look forward to seeing your image of this object. It is an unusual framing but seems to work. Is this your full frame or is it a crop?
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Old 26-10-2015, 11:27 PM
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Quote:
Originally Posted by Ryderscope View Post
Coming along nicely Andy. Good catch with that little globular in the foreground as well.
Thanks Ryderscope - lots of cool stuff to see in this area of space, amazing to think that we can photograph nebs in another galaxy from our backyards!

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Originally Posted by Paul Haese View Post
I was looking at the image I did of this earlier this evening and assessing if I would do it with the RC. I decided against it this year, but it is an interesting object. I look forward to seeing your image of this object. It is an unusual framing but seems to work. Is this your full frame or is it a crop?
Thanks Paul, you guys set the bar pretty high for the rest of us! Yes, it's a square crop - original full frame version below.
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  #5  
Old 27-10-2015, 07:50 AM
Placidus (Mike and Trish)
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A very nice framing, Andy. Definitely a Tasmanian devil - probably Mrs Devil, near as I can see. Your title goes well with the busy, extroverted star-forming activity. Lovely work.
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Old 27-10-2015, 07:56 AM
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A great subject - portrayed extremely well!

Thanks,
Tim
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Old 27-10-2015, 08:03 AM
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It's an interesting object. Should be a cool image, Andy!
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Old 27-10-2015, 12:38 PM
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Quote:
Originally Posted by Placidus View Post
A very nice framing, Andy. Definitely a Tasmanian devil - probably Mrs Devil, near as I can see. Your title goes well with the busy, extroverted star-forming activity. Lovely work.
Thanks Mike - There's plenty of obscure targets in the LMC, which is a good thing as there's not many other nebulae elsewhere at this time of year.

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A great subject - portrayed extremely well!

Thanks,
Tim
Thanks Tim - never ceases to amaze me what else is out there.


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It's an interesting object. Should be a cool image, Andy!
Yes it sure is Rick, hope to do it justice this time around.

Forecast is clear tonight, and it's a full moon - might as well have a crack at getting more data - should be an interesting challenge for the 5nm Astrodon Ha.
At least the moon's mainly in the North and this is object in the South, so hopefully the gradients are not too bad
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Old 27-10-2015, 01:47 PM
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He, he, Tassie Devil indeed ...well, at least you know if you need to tame this image at any time during processing, just play some nice music

Mike
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Old 27-10-2015, 08:16 PM
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That's a really cool target, Andy. Looking forward to seeing the final result!
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Old 29-10-2015, 03:27 PM
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He, he, Tassie Devil indeed ...well, at least you know if you need to tame this image at any time during processing, just play some nice music

Mike
He He, Maybe I'll play him some Neil Diamond records

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That's a really cool target, Andy. Looking forward to seeing the final result!
Cheers Codemonkey, I've added 6 hrs Ha = 11hrs+ new updated version here http://www.astrobin.com/full/222206/B/
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Old 29-10-2015, 06:30 PM
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Looks great Andy, lots of detail , i also am looking forward to the end result.
Tassie devil ?? Looks like a bucktoothed chicken.

Rorschach rules
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  #13  
Old 30-10-2015, 01:15 PM
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Gee Whiz! The extra data has certainly made a (great) difference.
R
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Old 30-10-2015, 03:01 PM
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great work Andy looking forward to seeing the finished version.
interesting neb shapes in the LMC/SMC

cheers

russ
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Old 01-11-2015, 10:01 AM
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The extra data has made a lot of difference to the contrast and detail. Nice.

I often wonder if I should go for 3nm Ha and O111 filters. I thought you were using 3nm until I saw this thread. The 5 is good. Have you considered the 3nm? I wonder what the advantages/disadvantages are? Longer exposure time is the disadvantage but how much more detail, if any, does the 3nm achieve?

Greg.
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Old 01-11-2015, 12:50 PM
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The most important difference between the 3&5nm Ha filters is the NII emission line. A 3nm Ha has only the Ha emission while 5nm+ will also contain the NII emission. With the extra emission it will bring make some objects brighter but it isn't a "true" Ha filter.
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Old 01-11-2015, 02:18 PM
Placidus (Mike and Trish)
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I like the new one because it's brighter and more contrasty without having lost anything at all, even, and much kudos to you, the cluster stars in the very brightest patches of nebulosity.
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Old 01-11-2015, 03:01 PM
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The most important difference between the 3&5nm Ha filters is the NII emission line. A 3nm Ha has only the Ha emission while 5nm+ will also contain the NII emission. With the extra emission it will bring make some objects brighter but it isn't a "true" Ha filter.
Thanks for that. Yes I knew that and its why I decided for my Honders not to switch to 3nm at my dark site on the advice of Don Goldman. But my home site, whilst fairly dark, does have some easterly pollution and I wonder how much of a gain you get from the 3nm. They are very expensive.

3nm narrowband filters seem to be used on this site often with the QSI683 as 30mm filters are far less expensive than the 50mm square ones.

Greg.
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Old 01-11-2015, 03:19 PM
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Originally Posted by gregbradley View Post
Thanks for that. Yes I knew that and its why I decided for my Honders not to switch to 3nm at my dark site on the advice of Don Goldman. But my home site, whilst fairly dark, does have some easterly pollution and I wonder how much of a gain you get from the 3nm. They are very expensive.

3nm narrowband filters seem to be used on this site often with the QSI683 as 30mm filters are far less expensive than the 50mm square ones.

Greg.
I've just started using Astrodon 3nm Ha filters, not sure how other passband ones compare as I've never used them but I have a sky limit of ~12-13 minutes with a full moon in the light polluted burbs of Melbourne.
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Old 01-11-2015, 10:27 PM
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Really nice Andy. The extra data has sure been worth it. The depth is great!
Lucas
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