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  #1  
Old 12-01-2019, 05:53 PM
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Bassnut (Fred)
Narrowfield rules!

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NGC1935 Nebula in the LMC

Hi Guys
Been a while.
NGC1935 In Narrowband. Big image here
Taken on an RCOS 10" RC Scope at f9, SBIG STXL6303E Camera and PME mount at itelescopes Siding Spring Observatory.
Processed with CCDstack, Star Tools and Photoshop. 100 hrs Total exposure time.

Ive been taking 1hr subs lately, much better (although this image has 40 min bin2 subs for OIII, SII).
80hrs for Ha.
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  #2  
Old 12-01-2019, 07:23 PM
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Quote:
Originally Posted by Bassnut View Post
Hi Guys
Been a while.
NGC1935 In Narrowband. Big image here
Taken on an RCOS 10" RC Scope at f9, SBIG STXL6303E Camera and PME mount at itelescopes Siding Spring Observatory.
Processed with CCDstack, Star Tools and Photoshop. 100 hrs Total exposure time.

Ive been taking 1hr subs lately, much better (although this image has 40 min bin2 subs for OIII, SII).
80hrs for Ha.
100 hours of exposure time? Holy Mole’ !! Must be something of a record. Slick data. Very smooth...
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  #3  
Old 12-01-2019, 09:40 PM
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The King of NB looooong exposures is back!
All hail the King
Another Top image Fred, it’s been way too long...
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  #4  
Old 12-01-2019, 10:14 PM
Stevec35 (Steve)
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Nice one Fred. Did this myself some years back but you've recorded far more detail than I ever did. Not surprising I suppose with 100 hours.

Cheers

Steve
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  #5  
Old 13-01-2019, 05:37 AM
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That's magical Fred! A real rose. So schmooth...
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  #6  
Old 13-01-2019, 09:21 AM
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Bassnut (Fred)
Narrowfield rules!

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100 hours of exposure time? Holy Mole’ !! Must be something of a record. Slick data. Very smooth...
Cheers Peter. Over 50hrs doesn't make much of a difference really, but if Im not processing for a while I just keep collecting anyway. Data is smoother but extra depth, on this anyway, just gets messy and hard to deal with.

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The King of NB looooong exposures is back!
All hail the King
Another Top image Fred, it’s been way too long...
Thanks Andy . I have other object data saved up, just need to get round to processing which for me takes a long time.

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Originally Posted by Stevec35 View Post
Nice one Fred. Did this myself some years back but you've recorded far more detail than I ever did. Not surprising I suppose with 100 hours.

Cheers

Steve
Thanks Steve. Yours is Ha RGB, different and WAY less time, you have appature , a luxury I dont have

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That's magical Fred! A real rose. So schmooth...
Thanks Simon
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  #7  
Old 13-01-2019, 01:38 PM
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astronobob (Bob)
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Extra-Ordinary take there Fred, very striking result, almost tricks to recognise it at 1st
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  #8  
Old 14-01-2019, 06:17 AM
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That's great, Fred! The long integration shows so much faint stuff.
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  #9  
Old 14-01-2019, 07:14 AM
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Astonishing image which really pops out of that dark background sky. Love the inner gaseous glow.
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  #10  
Old 14-01-2019, 09:02 AM
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100 hours, wow, you don't things by halves eh?

Super detailed and it makes it very easy to see the extent of it.

Greg.
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  #11  
Old 14-01-2019, 07:03 PM
Placidus (Mike and Trish)
Narrowing the band

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Superb work Fred. A magnificent three-dimensional explosion. I can just about imagine it as a frame from a (very long) cosmological movie.

Sincerely hoping you are going to post a high-res version at some point.

Best,
Mike
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  #12  
Old 15-01-2019, 10:39 AM
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marc4darkskies (Marcus)
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Good to see an image from you Fred! Very nice indeed!
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  #13  
Old 15-01-2019, 12:10 PM
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multiweb (Marc)
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100h? Pretty smooth for sure.
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  #14  
Old 18-01-2019, 07:59 AM
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Well done Fred. I have obtained a similar palette to yours in a rendition I did of this object a few years back. Loads of detail.

Peter not a record for general integration with Rolf doing a few images well over 100 hours and I have done the Helix at 110 hours myself. However for this particular object I am sure you're right. I don't ever recall anyone doing that many hours on it.
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