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  #21  
Old 27-04-2012, 10:15 PM
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marc4darkskies (Marcus)
Billions and Billions ...

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And therein lies the quandary - wide field vs narrow. Do you want to image M83 or the space around it? This scale simply won't do justice to M83 itself IMO. An interesting and pretty image though for sure!

Cheers, Marcus
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  #22  
Old 27-04-2012, 11:07 PM
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Peter Ward
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Quote:
Originally Posted by marc4darkskies View Post
And therein lies the quandary .............- wide field vs narrow. Do you want to image M83 or the space around it? T
I hear you Marcus!

As it turned out I was searching for a reasonably dense galaxy cluster, but as the seeing was awful... due the 35 knot breeze outside ( cloud, rain, gales...what next?? ) I couldn't get any decent resolution in my test shots...

but.....M83 was up, so "why not?" came to mind.

That said, there are alot of *teeny/dim* galaxies near M83 (I never knew they existed) and, despite the lack of technicolor, it gives the image some interesting scale... as Dr Carl liked to say: "billions & billions"...hence I suspect...and I could be wrong... it's that sense of scale that makes the image interesting.
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  #23  
Old 28-04-2012, 01:27 AM
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Awsome shot Peter, something i aspire to achieve. what kind of image calibration did you perform?
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  #24  
Old 28-04-2012, 03:05 AM
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midnight (Darrin)
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What fascinates me about this image is the faint companions which are very plentiful. I love these shots because it tends to show a third dimension with those galaxies in the distant.

Thanks for showing Peter!

Darrin...
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  #25  
Old 28-04-2012, 09:23 AM
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What fascinates me about this image is the faint companions which are very plentiful. I love these shots because it tends to show a third dimension with those galaxies in the distant.
Agreed Darrin ... well said.
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  #26  
Old 28-04-2012, 05:42 PM
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Peter Ward
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Originally Posted by midnight View Post
What fascinates me about this image is the faint companions which are very plentiful. I love these shots because it tends to show a third dimension with those galaxies in the distant.

Thanks for showing Peter!

Darrin...
Many thanks... put that way it I guess it does give you a sense of scale.

Quote:
Originally Posted by Joshua Bunn View Post
Awsome shot Peter, something i aspire to achieve. what kind of image calibration did you perform?
Thanks Josh.

When using larger sensors, cosmic rays get to be quite a problem!

I use median sky-flats and median darks. The raw data cleans up really well as a result.
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  #27  
Old 28-04-2012, 05:45 PM
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Thanks Josh.

When using larger sensors, cosmic rays get to be quite a problem!

I use median sky-flats and median darks. The raw data cleans up really well as a result.
Thankyou Peter
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  #28  
Old 28-04-2012, 06:09 PM
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Bassnut (Fred)
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Mm, thats one for the RCOS methinks
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  #29  
Old 28-04-2012, 07:19 PM
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Mm, thats one for the RCOS methinks
You and Marcus been talking eh?

Yep. Agreed. But, sadly, the RCOS mirrors are still with the coating lab.... ...it's getting you-beaut-enhanced silver-dielectric-overcoat 98% something or other.
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  #30  
Old 29-04-2012, 06:38 AM
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strongmanmike (Michael)
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You and Marcus been talking eh?
Don't worry Peter, Fred's just jealous, having to mozaic planetary nebulae makes you bitter after a while

Nice work from the RHA, this is another field I would like to hit from a dark sky with the AG12 too...will it ever happen

Mike
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  #31  
Old 29-04-2012, 01:52 PM
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Don't worry Peter, Fred's just jealous, having to mozaic planetary nebulae makes you bitter after a while

Nice work from the RHA, this is another field I would like to hit from a dark sky with the AG12 too...will it ever happen

Mike
Ta. So much sky, so little time..it is fun getting big slabs of it at once.
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  #32  
Old 29-04-2012, 10:21 PM
Ross G
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So much detail.

Ross.
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