ICEINSPACE
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Moon Phase
CURRENT MOON
Waning Gibbous 98.7%
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23-02-2010, 11:39 AM
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Galaxy hitchhiking guide
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Join Date: Dec 2007
Location: The Shire
Posts: 8,436
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More B&W globs
The lower noise and extra QE of the KAF16803 sensor is proving troublesome for twilight flats....with light levels dark enough to not saturate the sensor, stars are popping into view, making sky-flats a bit of a challenge.
Omega Cent is upon us...so I figured, why not...
http://www.atscope.com.au/BRO/gallery50.html
Added a touch of LR de-convolve....
The lack of filters (hence colour) is driving me spare...but the new CCD shows much promise 
Last edited by Peter Ward; 23-02-2010 at 12:12 PM.
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23-02-2010, 12:35 PM
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IIS Member #671
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Join Date: Dec 2005
Location: Canberra
Posts: 11,159
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Resolved, right to the core. Wow!
Can't wait to see this as a completed LRGB.
H
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23-02-2010, 01:40 PM
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Galaxy hitchhiking guide
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Join Date: Dec 2007
Location: The Shire
Posts: 8,436
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Quote:
Originally Posted by Octane
Resolved, right to the core. Wow!
Can't wait to see this as a completed LRGB.
H
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Thanks H ! .... self guide, like "Sellys", simply works.....as you will soon discover
Last edited by Peter Ward; 23-02-2010 at 01:53 PM.
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23-02-2010, 02:20 PM
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Like to learn
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Join Date: Jul 2007
Location: melbourne
Posts: 4,835
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Tight as ! Core looks fab.
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23-02-2010, 02:57 PM
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Registered User
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Join Date: Apr 2006
Location: Warrnambool
Posts: 12,766
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Gee Peter that is awesome mate, pin points right to the middle fantastic work.
Leon
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23-02-2010, 03:24 PM
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Galaxy hitchhiking guide
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Join Date: Dec 2007
Location: The Shire
Posts: 8,436
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Quote:
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Tight as ! Core looks fab.
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Ta..... tight as?? you mean a fishy's ... ??? 
Quote:
Gee Peter that is awesome mate, pin points right to the middle fantastic work.
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Thanks Leon...given the size of this monster sensor...which still gives me some concerns, thankfully the edges aren't too shabby either
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23-02-2010, 05:11 PM
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Registered User
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Join Date: Apr 2006
Location: Newcastle
Posts: 222
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Certainly a spectacular view. Your website lists it as 5189 instead of 5139 (A minor detail). I have some 50x50mm baaders not being used at the moment if you get really desperate.
guy
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23-02-2010, 05:30 PM
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ze frogginator
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Join Date: Oct 2007
Location: Sydney
Posts: 22,077
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oooh...very nice. can't wait to see that one in colour. 
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23-02-2010, 05:44 PM
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Galaxy hitchhiking guide
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Join Date: Dec 2007
Location: The Shire
Posts: 8,436
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Quote:
Originally Posted by Doomsayer
Certainly a spectacular view. Your website lists it as 5189 instead of 5139 (A minor detail). I have some 50x50mm baaders not being used at the moment if you get really desperate.
guy
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Thanks Guy... sadly the 50mm's are too small...& the typo is now fixed!
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23-02-2010, 05:45 PM
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Galaxy hitchhiking guide
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Join Date: Dec 2007
Location: The Shire
Posts: 8,436
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Quote:
Originally Posted by multiweb
oooh...very nice. can't wait to see that one in colour. |
Colour?! ...yep..that would be nice 
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23-02-2010, 06:13 PM
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Like to learn
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Join Date: Jul 2007
Location: melbourne
Posts: 4,835
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When do you expect the filters?
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23-02-2010, 06:37 PM
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Narrowfield rules!
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Join Date: Nov 2006
Location: Torquay
Posts: 5,065
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Excellent of course, but getting picky, theres slightly woofy guideing (I bet you took this in a hurry, in frustration ;-), and slight vignetting in the corners. I dont think you have an RCOS corrector, do you think one is required with the KAF16803 on your RCOS ? (not that its obvious without zooming).
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23-02-2010, 07:51 PM
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Amongst the stars
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Join Date: Jun 2006
Location: Glen Innes, N.S.W.
Posts: 2,888
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Pinpoint sharp Peter! Get that RCOS cookin!
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23-02-2010, 09:29 PM
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Widefield wuss
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Join Date: Mar 2008
Location: Caboolture, Australia
Posts: 6,993
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This is going to make a seriously kick arse luminance for some colour data Peter... Looks like a pretty unreal setup..
As Fred mentioned, I'd imagine the 4" RCOS flattener is required for the 16803..(although I'm not overly sure if the 14.25" supports it, or if that requires the upgrade to the 16" RCOS..?) As you are most certainly aware - she's a BIG sensor...
Do you have any ideas when you'll have filters? or when STX-AO will be available.... Normally I would have thought with the FL of the RCOS and the relatively small pixels of the 16803 that AO would be required for really really sharp stars, seems I would have been wrong....
Despite the B&W, you're producing some really really nice images with the camera already..
Awaiting some technicolor action! (as I'm quite sure you are too!! )
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23-02-2010, 09:51 PM
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Galaxy hitchhiking guide
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Join Date: Dec 2007
Location: The Shire
Posts: 8,436
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Quote:
Originally Posted by Bassnut
Excellent of course, but getting picky, theres slightly woofy guideing (I bet you took this in a hurry, in frustration ;-), and slight vignetting in the corners. I dont think you have an RCOS corrector, do you think one is required with the KAF16803 on your RCOS ? (not that its obvious without zooming).
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Dam your macro zooms Fred!
The guiding was fine...but my polar alignment is out and there was a constant Dec drift (due having to re-set the PME due fried electronics from some time back).
However I do use a RCOS FFC...(still getting the spacing sorted with the STX). Sorry, no vignetting I could see after the flats were applied
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23-02-2010, 09:57 PM
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Highest Observatory in Oz
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Join Date: May 2006
Location: Canberra
Posts: 17,622
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That's a very nice lum shot Peter, it has a very glowing sparkly look .
Now..and only because you made reference to the Sellys self guide   ..I have to concure with Fred  there is never the less something going on with the stars..? Normally this would be just nit picking and the imager would be well aware of it and I wouldn't bother mentioning it, so I am sorry if it sounds like this but given the gear and it's housing...weeelllll....more expectation for perfection I guess?
Still a better than average and appealing image of course.
Mike
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23-02-2010, 10:11 PM
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Billions and Billions ...
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Join Date: Mar 2007
Location: Quialigo, NSW
Posts: 3,142
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Looks damn fine to me Peter (except for some field curvature (?) ... which is particularly noticeable when you zoom in to 400% )
Cheers, Marcus
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24-02-2010, 11:39 AM
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Galaxy hitchhiking guide
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Join Date: Dec 2007
Location: The Shire
Posts: 8,436
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Quote:
Originally Posted by strongmanmike
...weeelllll....more expectation for perfection I guess?
Still a better than average and appealing image of course.
Mike
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Ah...true perfection is a myth....the are only degrees of perfection Grasshopper
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24-02-2010, 02:17 PM
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Galaxy hitchhiking guide
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Join Date: Dec 2007
Location: The Shire
Posts: 8,436
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Quote:
Originally Posted by marc4darkskies
Looks damn fine to me Peter (except for some field curvature (?) ... which is particularly noticeable when you zoom in to 400% )
Cheers, Marcus |
Thanks Marcus! ...Quite possibly the FFC position needs refinement....I just love how my images get put under the microscope
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24-02-2010, 05:46 PM
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Highest Observatory in Oz
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Join Date: May 2006
Location: Canberra
Posts: 17,622
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Quote:
Originally Posted by Peter Ward
Ah...true perfection is a myth....the are only degrees of perfection Grasshopper |
Oi who you callin a grasshopper?...I'm more of a locust 
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