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  #1  
Old 21-01-2012, 06:22 PM
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Rigel003 (Graeme)
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Ngc 3532

After a long night of battling clouds, trying not very successfully to get RGB data of another object, I dashed this off just as dawn was lightening the sky (and the clouds were clearing - wouldn't you know). Only time for three short subs of L and one each of RGB, the last ones taken in a bright sky, so it's amazing anything came of it.

It's a lovely field so I'll try to do it properly later. The magenta patch at top is from the outskirts of eta carinae.
Bigger version here

Takahashi TSA-120 with reducer
FLI Microline 8300
LRGB: 15, 5, 5, 5
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Click for full-size image (3532ultimateweb750.jpg)
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Last edited by Rigel003; 22-01-2012 at 11:01 AM.
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  #2  
Old 21-01-2012, 06:34 PM
TheDecepticon
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One of my favorite visual objects. Great job!!
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Old 21-01-2012, 06:42 PM
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rogerg (Roger)
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That's a nice image, I like the millions of stars you've brought out and the star colour. The slight diffusion of the stars helps.
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Old 21-01-2012, 08:03 PM
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renormalised (Carl)
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Nice piccie, Graeme

It looks good just as it is. I sometimes get the impression that people labour under the premise that in order to get a great astropic, you need to take reams of subs for hours long sessions in order to achieve anything good. For many subjects that's not needed, especially stars. You can only bring out so much detail and colour before all those subs are nothing more than just a waste of effort. You can only collect so much data....if you wanted, you could collect 50 hours worth of subs, but they'd look no better than what you've got there. At least that's my opinion.
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Old 21-01-2012, 09:36 PM
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Nice work Graeme. I like the colours there too.
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  #6  
Old 21-01-2012, 10:28 PM
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Very nice. A very pretty cluster I have not seen much of

Were those single 5 min RGB subs and 1 x 15 min Lum sub ?
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  #7  
Old 21-01-2012, 11:16 PM
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Rigel003 (Graeme)
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Thanks for the comments everyone.

Quote:
Originally Posted by cventer View Post
Very nice. A very pretty cluster I have not seen much of. Were those single 5 min RGB subs and 1 x 15 min Lum sub ?
Chris, the colour subs were only one five minute each 2x2. Luminance was three unbinned 5 minute subs, the last one in a very light sky. There was a price to pay for such short exposure time. If you examine the fine detail of the 100% version it's pretty scary. Fortunately for this bright object and at this image scale it's worked pretty well.

Last edited by Rigel003; 21-01-2012 at 11:27 PM.
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Old 21-01-2012, 11:25 PM
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Rigel003 (Graeme)
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Quote:
Originally Posted by renormalised View Post
Nice piccie, Graeme

It looks good just as it is. I sometimes get the impression that people labour under the premise that in order to get a great astropic, you need to take reams of subs for hours long sessions in order to achieve anything good. For many subjects that's not needed, especially stars. You can only bring out so much detail and colour before all those subs are nothing more than just a waste of effort. You can only collect so much data....if you wanted, you could collect 50 hours worth of subs, but they'd look no better than what you've got there. At least that's my opinion.
There's something in this Carl. I spent the whole night gathering data for a faint fuzzy and then knocked this off in 30 mins. Astrophotographers can be an anal lot though and you definitely need the long exposures to get rid of noise when you're doing extreme stretching.
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Old 21-01-2012, 11:59 PM
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Very nice view Graeme, thanks.
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  #10  
Old 22-01-2012, 08:43 AM
Ross G
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Great photo Graeme.

So sharp and beautiful, rich colours.

Ross.
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  #11  
Old 22-01-2012, 08:55 AM
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strongmanmike (Michael)
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Another great shot Graeme, you're getting good at this

Mike
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  #12  
Old 22-01-2012, 09:02 AM
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marc4darkskies (Marcus)
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Cluster shots don't usually get my juices flowing but this one's a beauty Graeme! Beautiful rich star colour with just the right amount of halo and a hint of neb. Very nice image indeed!

Cheers, Marcus
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  #13  
Old 22-01-2012, 12:29 PM
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For so little data per channel the amount of detail captured is amazing was this taken at a dark site or its it just the FLI

Last edited by TrevorW; 22-01-2012 at 02:21 PM.
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  #14  
Old 22-01-2012, 12:47 PM
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mill (Martin)
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For that amount of data it is a good shot.
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  #15  
Old 22-01-2012, 12:51 PM
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Your image shows a nice depth of detail, what a pretty little object, you have imaged it deservingly.

Trent
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  #16  
Old 22-01-2012, 02:21 PM
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Rigel003 (Graeme)
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Thanks for the comments everyone.

Quote:
Originally Posted by TrevorW View Post
For so little data per channel the amout of detail captured is amazing was this taken at a dark site or its it just the FLI
Trevor, it was a dark sky site, but it was so far into twilight that I'm not sure the lack of light pollution was an issue.
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  #17  
Old 23-01-2012, 07:28 AM
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multiweb (Marc)
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Really nice field. The stars and colors are very nice indeed. Beautifully processed. Nice and smooth.
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  #18  
Old 23-01-2012, 09:06 AM
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prokyon (Werner Probst)
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Very, very nice! A wonderful pic. Stars, colors, details... everything perfect!
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  #19  
Old 23-01-2012, 02:31 PM
RickC (Richard)
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I like the jewel like quality and colours of the stars in this image
really well done

Richard
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