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  #21  
Old 22-03-2013, 05:20 PM
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strongmanmike (Michael)
Highest Observatory in Oz

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Quote:
Originally Posted by rogerg View Post
Mike,

I’ve been thinking about your Orion AG. It produces such nice results in part due to the matching of your focal length to chip size. I have been considering what OTA to replace my 12” SCT with. Current top contender is the 16” GSO RC when it comes out if it’s up to scratch. But your Orion has me thinking.

What’s the disadvantage to a fast focal ratio like your AG? Or is there a disadvantage to the position of the camera? Or is the only disadvantage cost and the telescope is otherwise perfect?

My thought goes like this: Not being on top of a Chilean mountain my FWHM is never going to get better than my usual 4”-6”. Pixel scale less than 1” is wasted on me, usually less than 1.5” is wasted on me. Hence, focal lengths > ~2000mm are wasted on me, but aperture I want. One can overcome this by binning 2x2 permanently or by decreasing the focal length. The Orion AG being the latter option.

Any comments based on your experience?
All depends on what you have in mind, I wanted speed, aperture, semsitivity, versatility and portability (greedy huh ). In my mind 1200mm FL provides the best compromise with a large chip and 9micron pixels to cover all bases quite well and the speeeeeed is a god send

I've sent you an email

Mike
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  #22  
Old 22-03-2013, 08:18 PM
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Leonardo70 (Leonardo Orazi)
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Hi Mike ... Virgo time. A lot of galaxies to shot.
Very nice, wait for the color.

All the best,
Leo
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  #23  
Old 22-03-2013, 08:41 PM
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astronobob (Bob)
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Awesome Imaging, awesome field , hang on, ran out of words, , , oh, awesome details, and awesome equipment, so , overall, yep awesome stuff, top show and best for the colour Mike ! !
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  #24  
Old 22-03-2013, 08:47 PM
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peter_4059 (Peter)
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That's a really interesting field - haven't seen anything like it before. Thanks for sharing Mike
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  #25  
Old 23-03-2013, 05:12 AM
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ourkind (Carlos)
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Beautiful Mike! Very cool target

Is it possible to image Einstein Rings i.e. gravitational lensing with your setup or is that Professional Observatory/Hubble land

Just curious because that would be a cool fenoma to image
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  #26  
Old 23-03-2013, 07:41 AM
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cybereye (Mario)
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Quote:
Originally Posted by strongmanmike View Post

I totally get your sentiment Mario, the image made me feel exactly the same... we need to image together, I can feel it

Mike
...and after we've finished a rousing chorus of "Nessun Dorma" whilst imaging, we'll get stuck into a slab of VB, listen to 2GB's continuous call team call the footy and then catch a bit of Blokesworld on Foxtel....
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  #27  
Old 23-03-2013, 07:54 AM
Ross G
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Great photo Mike.

So many galaxies......amazing!


Ross.
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  #28  
Old 23-03-2013, 12:32 PM
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I downloaded your image Mike and subjected it to extreme torture so I could see the faint stuff. It was very revealing in the negative form. The signal to noise is very good for such a short data aquisition.

How big will your observatory be? I may just park my system there to take advantage of your dark skies.



Bert
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  #29  
Old 23-03-2013, 04:37 PM
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strongmanmike (Michael)
Highest Observatory in Oz

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Quote:
Originally Posted by Leonardo70 View Post
Hi Mike ... Virgo time. A lot of galaxies to shot.
Very nice, wait for the color.

All the best,
Leo
Cheers Leo, there is so much in Virgo besides that in the more popular area

Quote:
Originally Posted by astronobob View Post
Awesome Imaging, awesome field , hang on, ran out of words, , , oh, awesome details, and awesome equipment, so , overall, yep awesome stuff, top show and best for the colour Mike ! !
Well that's just awesome to hear Bob

Quote:
Originally Posted by peter_4059 View Post
That's a really interesting field - haven't seen anything like it before. Thanks for sharing Mike
Yes it is a cool bit of Virgo not in the more popular area of Makarians Chain

Quote:
Originally Posted by ourkind View Post
Beautiful Mike! Very cool target

Is it possible to image Einstein Rings i.e. gravitational lensing with your setup or is that Professional Observatory/Hubble land

Just curious because that would be a cool fenoma to image
Gravitational lenses are very faint and fine details, very hard to pick up in amateur sized scopes. They can be detected but without a comparison with a Hubble image you would never know.

Quote:
Originally Posted by cybereye View Post
...and after we've finished a rousing chorus of "Nessun Dorma" whilst imaging, we'll get stuck into a slab of VB, listen to 2GB's continuous call team call the footy and then catch a bit of Blokesworld on Foxtel....
Too right

Quote:
Originally Posted by Ross G View Post
Great photo Mike.

So many galaxies......amazing!


Ross.
Cheers Rossco

Quote:
Originally Posted by avandonk View Post
I downloaded your image Mike and subjected it to extreme torture so I could see the faint stuff. It was very revealing in the negative form. The signal to noise is very good for such a short data aquisition.

How big will your observatory be? I may just park my system there to take advantage of your dark skies.

Bert
Cool, glad to hear, only fair, after sharing all your precious Italian photons

Suuuure!!! I have a Sirius 2.3m Observatory kit in the shed

Mike

Last edited by strongmanmike; 23-03-2013 at 05:47 PM.
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  #30  
Old 24-03-2013, 09:24 PM
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ChrisM
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Nice work Mike. Looking forward to seeing this project progress.
Chris
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  #31  
Old 31-03-2013, 11:46 AM
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RobF (Rob)
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Love it. Really gets you thinking about things looking at a field like that.
Glad to see your new home site is paying big dividends too Mike.
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