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  #21  
Old 28-10-2019, 08:31 PM
PeterSEllis (Peter)
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That's a beautiful shot Lee, you can fell proud of that one.

Cheers
Peter
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  #22  
Old 29-10-2019, 07:01 AM
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Well done Lee, so much detail. Such a grand result for a 8 inch TS.
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  #23  
Old 29-10-2019, 11:56 AM
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Thanks very much Peter and Daniel, glad you like it
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  #24  
Old 30-10-2019, 09:21 AM
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Very very well done!
Cheers,
Tim
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  #25  
Old 30-10-2019, 11:54 AM
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Thanks Tim!
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  #26  
Old 31-10-2019, 02:17 PM
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Another great galaxy shot Lee. You're pumping them out!
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  #27  
Old 01-11-2019, 07:18 AM
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Slawomir (Suavi)
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Wow, wow, wow. What a fantastic image Lee Seeing what you and Mike are producing, makes a very convincing argument for the direction of my future telescope choice. Excellent, really inspirational work Lee.
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  #28  
Old 01-11-2019, 07:36 PM
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Quote:
Originally Posted by multiweb View Post
Another great galaxy shot Lee. You're pumping them out!
Thanks Marc! Clouds are back here and soon it'll be that time of the month, so it'll probably be a little while before I've got another image, unfortunately. I haven't started on my next target yet... unless I add data to something I captured last season...

Quote:
Originally Posted by Slawomir View Post
Wow, wow, wow. What a fantastic image Lee Seeing what you and Mike are producing, makes a very convincing argument for the direction of my future telescope choice. Excellent, really inspirational work Lee.
Thanks so much, Suavi, that's lovely feedback.

Funnily enough, I've been starting to think about what my setup might look like down the line and I'm not sure I'll stick with what I have forever. Maybe I'm just a masochist, the last big equipment change had me thinking "never again", but how soon we forget...

I'm thinking about something a bit bigger, like a premium RC (CFF?), or maybe a CDK, with a bigger-pixel-camera to suck in more light, riding on a mount with encoders, or maybe a friction drive, or maybe both. This is all many years away though. Until I have the mortgage paid off and can save up the big bucks I think this is a pretty good rig... I am pushing it to its limits though.
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  #29  
Old 02-11-2019, 12:36 PM
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Im not sure if there is that much room for improvement Lee - I would love one day to be able to compose galaxy images like yours. A nice RC crossed my mind once or twice, but that would require a completely new imaging rig, like you have mentioned. Mortgage out of the way first for me too , or at least the bulk of it...
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  #30  
Old 02-11-2019, 04:49 PM
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Thanks again Suavi :-)

I think the biggest win from here will be a mount with encoders... at this image scale I think I'm pushing the limits of even a Mach 1. I've found slight tweaks to guiding parameters can have pretty big impacts on image quality now because I'm typically getting a total RMS that's approximately the same as my image scale. That said, I'm aware that I'm well into the zone of diminishing returns.

A bigger scope / camera will just help me get deeper results faster. I'm not actually sure I'll get much more resolution, I think I'm more seeing limited than aperture limited, but I could be wrong there.
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  #31  
Old 02-11-2019, 06:39 PM
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I used Ray's (where is Ray? I miss his posts) excellent "Astrograph designer broadband" spreadsheet to plug in some numbers, comparing my QHY178m + 8" newt with a 12.5" CDK + 8300... given 5min subs, it would take 23hrs with the QHY+8" to get the same SNR as 13hrs with the CDK + 8300. The CDK + 8300 is at 0.44"/px and the 8" + 178m is 0.5"/px ... that's a pretty compelling argument in favour of the CDK.
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  #32  
Old 05-11-2019, 08:01 PM
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alan meehan (Alan)
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Lee what a superb image ,nice and sharp and some good colour
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  #33  
Old 05-11-2019, 08:14 PM
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Another excellent image Lee. I like the way you've presented it, beautiful intricate detail and tasteful, not over the top saturation.
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  #34  
Old 06-11-2019, 06:38 AM
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Thanks very much Alan and Peter :-)

Yeah, I do tend to push the saturation pretty hard these days, Peter, but this one wasn't really amenable to that... I did try though ;-)
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