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  #1  
Old 09-06-2008, 09:20 AM
Hagar (Doug)
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Omega Centauri with QHY8

A compilation of 4 X 10 minute exposures, fully calibrated with Darks,Flats and bias shots.
Camera: QHY8
Gain: 20%
Offset:120
Telescope: Takahashi FS102 guided by QHY5 and ED80
Captured with Nebulosity
Stacked in IPlus
Cropped and final adjustments in CS2

A bit of high level cloud terminated this imaging session. A little of this cloud is evident on some of the brighter stars.
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  #2  
Old 09-06-2008, 09:58 AM
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Robert_T
aiming for 2nd Halley's

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Aaah, so That's what Omega is meant to look like

That would have to be among the best

Quote:
Originally Posted by Hagar View Post
A compilation of 4 X 10 minute exposures, fully calibrated with Darks,Flats and bias shots.
Camera: QHY8
Gain: 20%
Offset:120
Telescope: Takahashi FS102 guided by QHY5 and ED80
Captured with Nebulosity
Stacked in IPlus
Cropped and final adjustments in CS2

A bit of high level cloud terminated this imaging session. A little of this cloud is evident on some of the brighter stars.
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  #3  
Old 09-06-2008, 11:43 AM
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Tamtarn
Barb and David

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Beautiful image Doug. The QHY8 is doing a fine job and you've really got the processing in hand now. Well done
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  #4  
Old 09-06-2008, 12:01 PM
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seeker372011 (Narayan)
6EQUJ5

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what settings-gain and offset are you using for flats?
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  #5  
Old 09-06-2008, 12:09 PM
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strongmanmike (Michael)
Highest Observatory in Oz

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This is a really nice image of Omega Doug.

I like the way you have preserved the clusters 3D appearence by not going too hard on the sharpening/resolution in the core.

Mike
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  #6  
Old 09-06-2008, 12:54 PM
Hagar (Doug)
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Flats Processing

Quote:
Originally Posted by seeker372011 View Post
what settings-gain and offset are you using for flats?

The Flats are Taken with the same Gain and offset as the light images. The exposure time is varied to give an average saturation of about 20000. About 1/3 full white point. 20 or so images are taken and then combined using ImagesPlus on a median setting to end up with a Master Flat file. Bias fils are shot the same way with the same exposure as the flat files.

I don't really know if this is the correct process but it seems to work OK for me.

Flats and Bia files are taken each imaging run to ensure dust motes and marks are consistant with the particular image run.
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  #7  
Old 09-06-2008, 01:39 PM
Alchemy (Clive)
Quietly watching

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looks like hagars light factory is cranking out more images... going like eric (ezystyles ) used to.

Might like a tad more saturation to bring out a bit more star color..

good
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  #8  
Old 09-06-2008, 10:49 PM
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Terry B
Country living & viewing

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Very Noice
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  #9  
Old 10-06-2008, 08:56 PM
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winensky
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Crystal clear. Call me old fashioned but I like a bit less density in the colour. It gives the feel that I am still gazing through the eyepiece. Thanks for the beautiful image.
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